Réponse :
Explications étape par étape
Bonjour
4(5x-3)-2(7x-9)=0
20x - 12 - 14x + 18 = 0
6x + 6 = 0
6x = -6
x = -6/6
x = -1
(6x-3)(3x-4)-(8x-1)(6x-3)=0
(6x - 3)(3x - 4 - 8x + 1) = 0
(6x - 3)(-5x - 3) = 0
6x - 3 = 0 ou -5x - 3 = 0
6x = 3 ou 5x = -3
x = 3/6 ou x = -3/5
x = 1/2 ou x = -3/5
