Quadratic equations have the form *ax*^{2} + *bx* + *c* = 0

They will generally have two solutions; that is, two different values of *x* that
make the equation true.

It can happen that both solutions are the same number, and it is possible that the solutions will be complex or imaginary numbers.

To use this utility, you type in values for *a*, *b*, and *c* in the
boxes below, and press the Solve button.

You may enter positive, negative, or zero values, but the value of *a* cannot be
zero.

A blank or non-numeric character is treated as a zero.

The Plot button will open a new window that will allow you to plot quadratic functions.