Bonjour
Résoudre les équation suivantes :
a)(3x + 1) + (4x - 2) = 0
3x + 1 + 4x - 2 = 0
3x + 4x = - 1 + 2
7x = 1
x = 1/7
b)4x (2x + 1) = 0
4x = 0 ou 2x + 1 = 0
x = 0 2x = - 1
x = - 1/2
c) (8x + 3)² = 0
8x + 3 = 0
8x = - 3
x = - 3/8
d) (x + 3)(2x - 1)(5 - 3x) = 0
x + 3 = 0 ou 2x - 1 = 0 ou 5 - 3x = 0
x = - 3 2x = 1 - 3x = - 5
x = 1/2 x = 5/3.
