Réponse :
Bonsoir
Explications étape par étape
A = (3x-5)(2x+1)+(4x-1)(3x-5)
A = (3x-5)(2x+1+4x-1)
A = (3x-5)*6x
A = 6x(3x-5)
B = (4x+2)^2 + (4x+2)(x-1)
B = (4x+2)(4x+2 + x - 1)
B = (4x+2)(5x+1)
B = 2(2x + 1)(5x+1)
C =(5x-7)(x+3) + (5x-7)
C = (5x-7)(x+3+1)
C = (5x-7)(x+4)
D = (x+8)(x-5) -6(x+8)
D = (x+8)(x-5-6)
D = (x+8)(x-11)
