Réponses

  • Utilisateur Brainly
2014-08-30T22:36:59+02:00
5x(4x-12)-(2x-7)(4x-12) = 0
(4x-12)(5x-(2x-7)) = 0

4x - 12 = 0
4x = 12
x = 12/4
x = 3

(5x - (2x - 7)) = 0
5x - 2x + 7 = 0
3x = -7
x = - 7/3

S= {- 7/3 ; 3}