» 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=

See also:

 
 

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