Réponses

2014-10-05T12:51:27+02:00
(8x-2-4x+5)(8x-2+4x-5) = 0 => (4x + 3)(12x - 7) = 0
=> 4x + 3 = 0 => x = - 3/4
=> 12x - 7 = 0 => x = 7/12