Question 974563
You could probably do this yourself.  There is a factorization formula for the Difference Of Cubes, and you can split the denominator into  {{{(sqrt(x)+3)(sqrt(x)-3)}}}.


Reference for Difference of two Cubes:  {{{(a^3-b^3)=(a-b)(a^2+ab+b^2)}}}


Why you say, "Factor"?  Maybe you really want to "REDUCE"?