Réponses

2014-01-19T20:38:52+01:00
Bonsoir

A(x)= 5x+3-6x+2-4 (3x-7)
A = 5x +3 -6x +2 -12x +28
A = -13x  +33

2014-01-19T20:39:42+01:00
5x +3 -6x +2 -4(3x-7)
5x +3 -6x +2 -12x +28
5x -6x -12x +3 +2 +28
-13x +33