L'Essentiel à Retenir

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    Les Erreurs Fréquentes

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Un facteur devant la fraction multiplie seulement le numérateur
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MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf x 1 h MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = 2 3h MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf Le numérateur est multiplié par l'inverse du dénominateur
    2 x²+x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf 2x²+x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf 2(x²+x+1) MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf Ne pas oublier les parenthèses au numérateur
    - -x+1 x MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf x+1 x MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf x-1 x MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf Le signe "-" revient à multiplier par (-1), et il ne faut pas oublier les parenthèses au numérateur

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    ↬ N'oubliez pas de mettre des parenthèses lorsque le numérateur et le dénominateur contiennent plusieurs termes :   x+1 x-2 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf x -x+6 x² + x + 1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = (x+1) (x-2) MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf x (-x+6) (x² + x + 1) MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = (x+1)(-x+6) (x-2)(x² + x + 1) MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf

    ↬ La barre de fraction fait office de parenthèse, je vous conseille donc de les faire apparaître au numérateur comme au dénominateur. Notamment, quand vous avez un signe "-" devant la barre de fraction. Ex :   - 2-x x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = - (2-x) x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = -(2-x) x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = -2+x x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf

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    Les Erreurs Fréquentes

    2 3 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf m 2m 3m 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2 3 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Un facteur devant la fraction multiplie seulement le numérateur
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h 2 3 h 1 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= 2 3 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf x 1 h MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = 2 3h MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf Le numérateur est multiplié par l'inverse du dénominateur
    2 x²+x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf 2x²+x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf 2(x²+x+1) MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf Ne pas oublier les parenthèses au numérateur
    - -x+1 x MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf x+1 x MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf x-1 x MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf Le signe "-" revient à multiplier par (-1), et il ne faut pas oublier les parenthèses au numérateur

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    ↬ N'oubliez pas de mettre des parenthèses lorsque le numérateur et le dénominateur contiennent plusieurs termes :   x+1 x-2 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf x -x+6 x² + x + 1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = (x+1) (x-2) MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf x (-x+6) (x² + x + 1) MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = (x+1)(-x+6) (x-2)(x² + x + 1) MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf

    ↬ La barre de fraction fait office de parenthèse, je vous conseille donc de les faire apparaître au numérateur comme au dénominateur. Notamment, quand vous avez un signe "-" devant la barre de fraction. Ex :   - 2-x x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = - (2-x) x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = -(2-x) x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf = -2+x x+1 MMF.7h]`3`00QEO=L]]637h2_h))m0b]FN`?^La=EQUGDd_bB8cCPbm|b[ZJfU9::fdBSmnm`)jB11EB]F`;7k0;h(=R8NYQ|GZogRaWaF:m^WRmN9Q_lUVagTC;l_SW|WcLOI[LEOG;HElnCCk^mY=ok5C:bh^7HU7LiU7nmiOb^3_|[`1EmoUVRdhR4dnBN29*lm)|b2)0N6;SRAB0FPW_Y7ZWbISoNWLkFjbRbh^gRhM]GQB;e*dU|=f^I||ln_1BeI=]MCc^mXnhn^DHRGRiW5OkhiOjfj[jedM0=*b[iHUJN[GZe)^WgfoZZ_Z[]NTQFg1WC]b1EbO3`M)hf3eG;a?DCCJ7ig;OFV`l?gbYMlR=[lm6el(Hja7J((8KcQ67LlaQQ3Z(L8MalS3(7|KYbe?j8KPL)oDAn_8LOGV)_QbQ;dOXbg7jLYRn7:N_ATiOSM1GYoBMoS]N7AV3m3;449^PAff|S9LEbZ03d0SB|(R***I3*XHPYlbCYDE901T26fA|H8Smk|lAbL:;U0H4FK8UU8JIFPlX3*P6ddKnk;9Xm2Ub4e(ET7E8Q_dI2n8B(*d0UXVTjPBI`V|EP:_2=7P6BZ2A4njHjP2Z*EB9Y05I;cTY)6VFPZ*:I0e*S9gT9I26KN4Yb;C;CMYnC5h3aA=*`0ZRg1Td*;D7R43cdc4mib[YhZZD4ENFnlhHd3`5CBWHh41;AUD[_Tach5?*cD9:hJXeQViXn|Lb8SYSA8cP[LGC(9A6f6ohDAQ=OM:dPg7GXV5U4]h3Q[:**KI(c[Y)B`BCFB|T|R]Y`X^*^?0=(9gG966Nj11DTdMR7N(6IEfDU5n6U3M2b^:W53mLQUBkbZH16Kj5b3LaDmJ::LGG*GIm65:f55h5GiJ7]kh?6jBhRCNRmEg*X:BSIRV1ZgHNF6K9^]*b`FAFoTbbR9WZ:Y]Ye]jIH*NC9Ga;bSXV|aaTk8J14;gI8Z0?IFm`:CIiQ)K0M0L4XSNDA=Y3UYL;16]40=6cmDHS^(7DVY*[KF_dek:5QVm()4QSg*4ZbUG[|ULE=b3Kd`Lg8VD390O^ISB0UlC=B=TROSKPaZA]4F|=T)abP):ODfi(]P(65;|OP8=BM0]MOcHIQTUYfZFmdg73|RfTViHMJT]b(k_3Sd`A^kASQNlNnIQT1HOjEW`5Zn|RInO_4:`:MmVP]n6oMI)?[1XmZV1a;1eF`FZLiXMG|2H^Rk6|d]JJ)V_J|mZcNk?ceOROHP4MbF3FVoFjR(*Dki)H9_P7962CXLYm;ScoLO;e`n]P*2MoO9Sd1SF`N)39da_XZG=FehN`SQhf[gOk|_kVLHYhECfFalYSRgQC?KT_HejCXNJn[7OUKdnE3=TBQOch:B1:?_mj[(^09M_a?^SDP4h?j(b9[Wa21_*HPCOJ^UolI0h0IN5TQaBeE5WgUV]B^k(QQ*h[=CW1aO?K3Ak6jU0ohgOBX_Yj3?gYGc0E[|?Wjm_ejCXlCOLc8)0fg7CmRg))d_K3(Z:b;EI5A)jf?jloG|nf)AWOb?^Zb5L5OEnmOWdXX^CbUHAiY2kO_21A^(MW^L^g=mc`7k86FS`.mmf

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