Найду корень уравнения: x^2 = 0
2 x = 0
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(0)^2 - 4 * (1) * (0) = 0
x = -b/2a = -0/2/(1)
x1 = 0
x1 = 0.0