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Sagot :

Réponse :

Explications étape par étape

Bjr,

A=4 x² - 3 x

x(4x -3)

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

(x-1) (x+2 +3x-1) = (x-1) ( 4x +2)

C=(2x+1)(3x+4)+(3x+4)

(3x+4) ( 2x+1 +1) = (3x+4) (2x+2)

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

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

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