Question 873587
The lesson was already quoted.  That needs to be studied.


<a href="http://www.algebra.com/tutors/Completing-the-Square-to-Solve-General-Quadratic-Equation.lesson?content_action=show_dev">http://www.algebra.com/tutors/Completing-the-Square-to-Solve-General-Quadratic-Equation.lesson?content_action=show_dev</a>


After factoring a 2 from the quadratic expression, the term to complete the square is {{{(3/(2*2))^2=9/4}}}, to be added and subtracted INSIDE the parentheses.