Réponses

2013-02-10T10:39:38+01:00

b) 2x² + 3x - 5/x² - 2x + 1 = 3

2 +3x - 5/-2x + 1 = 3

-3 +3x +2x -1 = 3

-4 +5x = 3

5x = 3+4

5x = 7

x = 7/5