Question 853673
Everything that needs saying is in here:


<a href="http://www.algebra.com/tutors/Completing-the-Square-Using-Pictures.lesson?content_action=show_dev">What is Completing the Square</a>
and
<a href="http://www.algebra.com/tutors/Completing-the-Square-to-Solve-General-Quadratic-Equation.lesson?content_action=show_dev">Solving Equation by Completing the Square, how to use the method</a>