Réponses

2013-11-05T19:16:26+01:00
Meilleure réponse !
2013-11-05T19:34:48+01:00
5(x-1)(2-x)
5(2x-x²-2+x)
10x-5x²-10+5x
-5x²+15x-10

(x²+x-3)(2x-3)
2x³-3x²+2x³-3x-6x+9
4x³-3x²-9x+9