Question 946607
This was just thoroughly solved already:


<a href="http://www.algebra.com/algebra/homework/equations/Equations.faq.question.945748.html">http://www.algebra.com/algebra/homework/equations/Equations.faq.question.945748.html</a>


YES, this was fully solved for you, the complete solution.  That posting in the hyperlink shows the solution to how to rationalize the denominator.