Question 869742
Study these two lessons:


<a href="http://www.algebra.com/tutors/Completing-the-Square-Using-Pictures.lesson?content_action=show_dev">This show what Completing the Square means</a>
and
<a href="http://www.algebra.com/tutors/Completing-the-Square-to-Solve-General-Quadratic-Equation.lesson?content_action=show_dev">How to use Completing the Square for a quadratic equation</a>