SOLUTION: how do i reduce (x-9) divided by (radical x) -3 by factoring over the irrationals?

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Question 400194: how do i reduce (x-9) divided by (radical x) -3 by factoring over the irrationals?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use a substitution, let u%5E2=x, u=sqrt%28x%29
%28u%5E2-9%29%2F%28u-3%29=%28%28u-3%29%28u%2B3%29%29%2F%28u-3%29
%28u%5E2-9%29%2F%28u-3%29=u%2B3
%28x-9%29%2F%28sqrt%28x%29-3%29=sqrt%28x%29%2B3