aidez moi svp factoriser les expressions suivantes: a=7x**2- 4x**2 B=(2x-1)(x+3)+5(x+3) C=(7-2x)(x+1)+2(7-2x) D=(3x+1)**2-(5x-1)**2 E=(2x+3)**2-(5x-1)**2x F=(x+

Réponse :

Explications étape par étape

Bonsoir

factoriser les expressions suivantes:

a=7x**2- 4x**2

A = x^2(7 - 4)

A = 3x^2

B=(2x-1)(x+3)+5(x+3)

B = (x + 3)(2x - 1 + 5)

B = (x + 3)(2x + 4)

B = (x + 3) * 2(x + 2)

B = 2(x + 3)(x + 2)

C=(7-2x)(x+1)+2(7-2x)

C = (7 - 2x)(x + 1 + 2)

C = (7 - 2x)(x + 3)

D=(3x+1)**2-(5x-1)**2

D = (3x + 1 - 5x + 1)(3x + 1 + 5x - 1)

D = (-2x + 2)(8x)

D = 2(-x + 1)(8x)

D = 16x(-x + 1)

E=(2x+3)**2-(5x-1)**2

E = (2x + 3 - 5x + 1)(2x + 3 + 5x - 1)

E = (-3x + 4)(7x + 2)

F=(x+3)(2x-3)-(2x-3)

F = (2x - 3)(x + 3 - 1)

F = (2x - 3)(x + 2)

G=(3x-5)**2+(3x-5)(3x+5)

G = (3x - 5)(3x - 5 + 3x + 5)

G = (3x - 5)(6x)

G = 6x(3x - 5)