Réponses

2014-10-29T11:48:27+01:00
A= 4x + (2x+1) (5x-3)
A= 4x + [ 10x² -6x +5x -3 ]
A= 4x +10x² -6x +5x -3
A= 10x² +3x -3
2014-10-29T11:48:27+01:00