Réponses

2014-02-01T14:32:30+01:00
Bonjour

G= (a+4) x (a-1) = a² -a +4a -4 = a² +3a -4
H= (4x+1) x (3x+2)
= 12x² + 8x + 3x +2 = 12x² +11x +2