(2x - 3)(3x + 2) = 0
6x² - 9x + 4x - 6 = 0
6x² - 5x - 6 = 0 D = b²-4ac = 25+144 = 169 = 13²
x₁ = (-b+√D)/2a = (5+13)/12 = 18/12 = 1,5
x₂ = (-b-√D)/2a= (5 - 13)/12 = -8/12 = - 2/3
Ответ: {-2/3; 1,5}
Или так:
(2х - 3)(3х + 2) = 0
2x - 3 = 0 3x + 2 = 0
x = 1,5 x = -2/3
Ответ: {-2/3; 1,5}