Réponses

Meilleure réponse !
2013-06-05T18:11:54+02:00
A = 2(5t + 3) + (t + 2) (3t + 6)
A = 10t + 6 + (3t au carré + 6t + 6t + 12)
A =22t + 18 + 3t au carré

B = (2x + 7) (3 - 5x) - 6(x + 1)
B = 6x - 10x au carré + 21 - 35x - 6x - 6
B = - 35x - 10x au carré + 19
2013-06-05T18:27:44+02:00