Question 957155
<s>Look at the derivation for the solution formula for a general quadratic equation.  The discriminant is the expression inside the radical.</s>
Look at the derivation for the solution for a general quadratic equation.  The part of the general solution formula inside the radical is the discriminant.


You can refer to this lesson to understand clearly.
<a href="http://www.algebra.com/my/Completing-the-Square-to-Solve-General-Quadratic-Equation.lesson?content_action=show_dev">The answer symbolically is in here, but you need to read, study, and find it.</a>
http://www.algebra.com/my/Completing-the-Square-to-Solve-General-Quadratic-Equation.lesson?content_action=show_dev