Réponses

2012-10-20T19:51:40+02:00
2012-10-20T20:00:51+02:00

C= (4x-2x²+10-5x)-2-x

=-2x²-1x+10-2-x

= -2x²-2x+8

 

D= x²+2x-x-2

= x²1x-2