Найду корень уравнения: 16 - x^2 = 0
2 16 - x = 0
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(0)^2 - 4 * (-1) * (16) = 64
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
x1 = -4
x2 = 4
x1 = 4.0
x2 = -4.0