Answered

salut
factoriser l expression
2 ( x-1 ) + (x - 1)²
merci de m aider :)

Sagot :

INEQUATION

Bonsoir,

Factoriser:

2 ( x-1 ) + (x - 1)²= (x-1)(2+x-1)= (x-1)(x+1)
Salut,
2(x-1)+(x-1)^2
2x-2+(x-1)^2
(a-b)^2=a^2-2ab+b^2
Donc,
2x-2+x^2-2x+1
2x-2+x^2-2x+1
-2+x^2+1
-1+x^2

La solution finale est -1+x^2