Réponses

Meilleure réponse !
2014-10-12T19:54:56+02:00
A = 3(x+3)
3x +9
B = 3(2x -3)
6x -9
C = -2 (x +3)
-2x -6
D = -7(3x-5)
-21x +35
E = (x+2)(x+3)
x² +3x +2x +6
x² 5x +6
F= (6x -7)(1 +2x)
+6x +12x² -7 -14x
+12x² -8x -7
G = (2x-3)(5x-4)
+10x² -8x -15x +12
10x²  - 23x +12
H = (-3x+2)(2x-3) 
-6x² +9x +4x -6
-6x² +13x -6