Question

Factoriser l'expression suivante :
(−2x+4)(−2x−4)+3(−2x+4)

Answer 1

2(2x+1)(x-2)

Explanation:

(-2x + 4)(-2x - 4) + 3(-2x + 4) = (-2x - 4 + 3)(-2x + 4) = -(2x + 1)*-(2x - 4) = (2x+1)(2x-4) = 2(2x+1)(x-2)