Réponses

2013-11-14T19:58:58+01:00
A= 5x-4+7x-8x+6
  =4x+2
b= -4y+5-2y²+y-8y²-3y-11
  =-10y²-6y-6
2013-11-14T20:02:48+01:00
A= 5x-4+7x-8x+6
=4x+2
B=-4y+5-2y²+y-8y²-3y-11
=-10y²-6y-6