Réponses

Meilleure réponse !
2014-02-01T20:27:37+01:00
H=64x²+16x+1-(5x-3)(8x+1)
=
(8x+1)²-(5x-3)(8x+1)
=(8x+1)(8x+1-5x+3)
=(8x+1)(3x+4)