Completing the Square

An alternate method of solving quadratic equations is called completing the square.  Actually completing the square involves using the (2) square root property.  However, we have a few steps to setting up the problem before we can use completing the square.

         first isolate both terms containing the variable onto one side of the equation
                            next take of the middle term
                                                           now square this number and add to both sides

                                   the right-hand side will factor into the square of a binomial

                          now use the (2) square root property and solve

           

           

            and
 

General Algebra Tips

The views and opinions expressed in this page are strictly those of Mary Lou Baker.
The contents of this page have not been reviewed or approved by Columbia State Community College.

This page was edited on 28-Jun-2011