Je dois factoriser. pouvez vous me corriger
(x-2)(3x+1)+(3x+1)(4-2x)=
(3x+1)^2(x-2)(4-2x)
(3-2x)(4-x)-(3-2x)(5x-7)
(3-2x)^2(4-x)(5x-7)
(x-2)(3x+1)+(3x+1)(4-2x)=
(3x+1)^2(x-2)(4-2x)
(3-2x)(4-x)-(3-2x)(5x-7)
(3-2x)^2(4-x)(5x-7)
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(3x+1)(x-2+4-2x)
=(3x+1)(-x+2)
(3-2x)(4-x)-(3-2x)(5x-7)
(3-2x)(4-x-5x+7)
(3-2x)(-6x+11)
(3x+1)²+(x-2)(4-2x) Tu as oublié le + devant (x-2)
(3-2x)(4-x)-(3-2x)(5x-7)
(3-2x)²-(4-x)(5x-7) Tu as oublié le - avant ( 4-x)