Réponses

2013-11-04T17:22:24+01:00
3x(2-x)-(5x-3)(2-7x)
6x-3x²-(10x-35x²-6+21x)
6x-3x²-10x+35x²+6-21x
32x²-25x+6
2013-11-04T17:30:26+01:00
Bonsoir

3x (2-x) - (5x-3) (2-7x)
6x -3x² - (10x - 35x² -6 +21x)
6x -3x² -10x +35x² +6 -21x
32x² -31x +6x +6
32x² -25x +6