Réponses

2013-11-25T19:24:29+01:00
A = 4x + 8
A = 4x + 4*2
A = 4 (x + 2)

B = 7 + 21x
B = 7 + 7*3x
B = 7 ( 1 + 3x)
2013-11-25T19:26:11+01:00