Bonjour, pouvez-vous m’aidez svp ? Exercice 26 : Résoudre les équations suivantes : (3x+1)(-x+4)=0 7x(3x - 1) = 0 (x - 1)(3/5x - 1) = 0

Bonjour !

(3x+1)(-x+4) = 0

(3x+1) = 0 => 3x = - 1 => x = -1/3

(-x+4) = 0 => - x = - 4 => x = 4

7x(3x-1) = 0

7x= 0 => x = 0/7

(3x-1) = 0 => 3x = 1 => x = 1/3

(x-1)(3/5x-1) = 0

(x-1) = 0 => x = 1

(3/5x - 1) = 0 => x = 1:3/5 = 5/3

Bon courage.