Solve a Quadratic Equation Using the Quadratic Formula

This page will show you how to use the quadratic formula to get the two roots of a quadratic equation.

Fill in the boxes to the right, then click the button to see how it’s done.

It is most commonly note that a is the coefficient of the x2 term, b is the coefficient of the x term, and c is the constant term (the term that doesn’t have and variables in it.

Type a, b, and c (the coefficients and constant term) of your quadratic equation into the boxes

x2+ x+ =0 
a     b      c

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