Réponses

2012-09-29T22:30:28+02:00

(2x-1)² = (2x-1)(5x+1)

(2x-1)² - (2x-1)(5x+1) = 0

(2x-1)(2x-1-5x-1) = 0

(2x-1)(-3x-2) = 0

(2x-1)(3x+2) = 0

 

2 solutions :

x = 1/2

ou

x = -2/3

 

en espérant t'avoir aidé.