Réponses

2013-05-05T22:43:21+02:00

A = (-5x+4)(2x-3)-x(-3x-6)-(7x²+3x-2)

A= -10x²+15x+8x-12+3x²+6x-7x²-3x+2

A=-14x²+26x-10

 

sauf erreur