Найду корень уравнения: 4+3x-x^2=0
2 4 + 3*x - x = 0
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(3)^2 - 4 * (-1) * (4) = 25
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
x1 = -1
x2 = 4
x1 = 4.0
x2 = -1.0