Answered

Factoriser (x+1)(5x-6)-(5x-6)(-1+4x) bloquer a cause des signes...

Sagot :

(5x-6)[(x+1-1+4x)]

(5x-6)(5x)

MLLEAUDREY

(5x-6)[(x+1)-(-1+4x)]=(5x+6)[x+1+1-4x]

                               =(5x+6)(3x+2)