Réponses

2012-05-17T18:35:22+02:00

A= (3x+1)(2x+5)

A = 6x²+15x+2x+5

A=6x²+17x+5

 

B=(2x-3)(x+2)

B=2x²+4x-3x-6

B=2x²+x-6

 

C=(4x-1)(3x-4)

C=12x²-16x-3x+4

C=12x²-19x+4

 

FIN