Réponses

2013-10-30T19:56:09+01:00
2x(5x-8)-(3x+1)(5x-8)
(5x-8)2x-(3x+1)
(5x-8)(2x-3x-1)
(5x-8)(-x-1)
2013-10-30T20:51:13+01:00
2x(5x-8)-(3x+1)(5x-8)
=(5x-8)(2x-3x-1)
=(5x-8)(-x-1)