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Sagot :

TEAMCE

Bonsoir,

On utilise le facteur commun :

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

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

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

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

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

B= x²(x-1) - 2x(x-1)

B= x²(x-1) - 2x(x-1)

B= (x-1) (x²-2x)

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

C= a+ab

C= a(1+b)

Bonne soirée.

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