Répondre :
Bonjour !
(6x-1)² = 12x
36x² + 1 - 12x = 12x
36x² - 12x + 12x = 1
36x² = 1
36x² - 1² = 0
(6x - 1) (6x + 1) = 0
6x-1 = 0 => x = 1/6
6x + 1 = 0 => x = -1/6
Bon courage .
Bonjour !
(6x-1)² = 12x
36x² + 1 - 12x = 12x
36x² - 12x + 12x = 1
36x² = 1
36x² - 1² = 0
(6x - 1) (6x + 1) = 0
6x-1 = 0 => x = 1/6
6x + 1 = 0 => x = -1/6
Bon courage .