Solve [math]5x^2 – 50x – 120 = 0[/math] by completing the square.
[list=1] [*]Determine if [math]5x^2 – 50x – 120 = 0[/math] is a perfect square trinomial. [*]Complete the square. [*]Express the perfect square trinomial as the square of a binomial. [*]Isolate [math]x[/math]. [*]Determine the solution(s). [/list] This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit [url="http://www.walch.com"]www.walch.com[/url] for more information on their resources.