Bonsoir vous m aide svp Factoriser chacune des expressions suivantes : (x+ 1)(x-3) + (x + 1)(-2x + 1)
x²(x - 1) - 2x(x - 1)
a+ab
ab+ab²c
x²(x - 1) - 2x(x - 1)
a+ab
ab+ab²c
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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.