Réponse :
Bonsoir,
Explications étape par étape
A=(-6x+5)(7-4x)
A= -42x+24x+35-20x
A= -38x+ 35
B = (6x-7)(-11x+2)
B=-66x^2+12x+77x-14
B= -66x^2+89x-14
C=(3-2x)(5x+6)
C=15x+18-10x^2-12x
C= -10x^2+3x+18
D= (7x-5)(-x-3)
D= -7x^2-21x+5x+15
D=-7x^2-16x+15
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Réponse :
Bonsoir,
Explications étape par étape
A=(-6x+5)(7-4x)
A= -42x+24x+35-20x
A= -38x+ 35
B = (6x-7)(-11x+2)
B=-66x^2+12x+77x-14
B= -66x^2+89x-14
C=(3-2x)(5x+6)
C=15x+18-10x^2-12x
C= -10x^2+3x+18
D= (7x-5)(-x-3)
D= -7x^2-21x+5x+15
D=-7x^2-16x+15