Bonsoir,

Factoriser les expressions:

A= 9x(x-3+10+2x)

A= 9x(3x+7)

B= (2x+1)(8+x+3x-1)

B= (2x+1)(4x+7)

C= (11x-3)(11x-3+5+9x)

C= (11x-3)(20x+2)

Réponse :

A= 9x (x - 3)(10 + 2)

B= (2x + 1) (8 + x) + (3x - 1)

C= (11x - 3)³  (11x - 3) + (5 + 9x)