Correction svp.


bonjours quelqu'un pourrait me corriger svp.

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

Developpez A)
A=(x^2 +1x-1x)+[x^2-2*x*(-1)+1^2]

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


Factoriser
jai trouver A=(x-1)(2x+0)
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