2х2-3х-2 разложить на множители трехчлен

ax^2 + bx + c = a(x - x1)(x - x2) 2х^2 - 3х - 2 : D = 25 x1 = (3 + 5)/4 = 8/4 = 2 x2 = (3 - 5)/4 = -2/4 = -1/2 2х^2 - 3х - 2 = 2(x-2)(x+1/2)