Réponses

2014-03-03T17:07:07+01:00
4x X 2x-3 X 5-3X2x-3X5. X =multiplier. x =la lettre x
2014-03-03T17:10:47+01:00
(4x - 3)(2x - 5)
4x x 2x + 4x x (-5) - 3 x 2x - 3 x (-5)
8x² - 20x - 6x + 15
8x² - 26x + 15

4x - 3 (2x - 5)
4x - 3 x 2x - 3 x (-5)
4x - 6x + 15
-2x + 15

4 x - 3 - (2x-5)
4x - 3 - 2x + 5
2x + 2

4 x - 3 + (2 x-5)

4x - 3 + 2x - 5
6x - 8

J'espère t'avoir aidé! :)