XXDREEYDREEYXX XXDREEYDREEYXX Mathématiques Answered Quelques équations .. 4(3-x^2) + 5x^2 = 6x^2 - 3(8x^2-10) x(x-1) + 2x(x-3) = 0 (x-1)^2 + 4(x-1)(x+5) = 0 4x^2 - (3x+1)^2 = 0 x(x-4) - 5(4-x) = 0 4x^2 + 20x + 25 = 0 (x+5)^2 - (2x+7)^2 = 0