Since you have used as your independent variable in the original problem, I'm going to specify the standard form quadratic using Greek letter coefficients thereby avoiding confusion.
The standard form of a quadratic equation is:
In your example, you are using in place of
And, comparing your example to the standard form, your , your and your
The general solution of the standard quadratic equation is given by:
Note: All quadratics have two solutions in the Complex Numbers.
John
My calculator said it, I believe it, that settles it