Free Online Calculators » Vieta's formulas (for quadratic equation)



Initial Data


$$ax^{2}+bx+c=a(x-x_{1})(x-x_{2})$$


x1  =

x2  =


Result


\begin{align} x_{1}+x_{2}&=-\frac{b}{a}\\ \\ x_{1}\times x_{2}&=\frac{c}{a}\\ \end{align}


-b/a  =

 c/a =