Réponses

2013-04-28T22:59:58+02:00
2013-04-28T23:00:41+02:00

L=x²+6x+9-49

L=-49+x(6+x)

 

N =8x²+8x-5x-5+8x-5x+80x-50

N = 8x²+86x-55

N = x(8x+86)-55