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Sagot :

MOZI

Bonsoir,

A(x) = (2x - 1) (x + 1) - 2x (2x -1)

A(x) = (2x - 1) (x + 1 - 2x)

A(x) = (2x - 1) (1 - x)

B(x).= (2x - 6) + (x - 3)

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

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

B(x) = 3 (x - 3)

C(x) = (x - 2) - 5 (2 - x)

C(x) = (x - 2) + 5 (x - 2)

C(x) = (1 + 5) (x - 2)

C(x) = 6 (x - 2)

D(x) = 3 (x - 1) + 4 (1 - x)

D(x) = -3 (1 - x) + 4 (1 - x)

D(x) = (-3 + 4) (1 - x)

D(x) = 1 (1 - x)

AUSTRALIEN

Réponse :

A = (2x-1)(x+1-2x)

A =(2x-1)(-x+1)

B = 2(x-3)+(x-3)²

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

B =(x-3)(x-1)

C = 1(x-2)+5(-2+x)

C =(x-2)(1+5)=

C= 6(x-2)

D = 3(x-1)-4(-1+x)

D = (x-1)(3-4)

D= -1(x-1)

Explications étape par étape :

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