Bonjour,
Factoriser les expressions:
a. (x+1)(1-x-2x-1)
(x+1)(-3x) <=> -3x(x+1)
b. 3(2x-2)+(x+1)(1-x)
3*2(x-1)+(x+1)(-x+1)
-6(-x+1)+(x+1)(-x+1)
(1-x)(-6+x+1)
(1-x)(x-5)
-(x-1)(x-5)
c. 2x(x+1)+(x+1)(x-1)(x+1)
x³+3x²+3x+1
(x+1)³
d.12x²-6x+(2x-1)(5-2x)
6x(2x-1)+(2x-1)(5-2x)
tu continues pour t’entraîner
