Free Online Calculators » Quadratic Equation Calculator

A quadratic equation is a polynomial equation of the second degree (known as early as 2000 BC), where x represents an unknown, and a, b, and c known numbers.



Initial Data


$$ax^{2}+bx+c=0$$


a =

b =

c =


Result


$$x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$$


x1 =

x2 =