Divide...
You may recall that when you divide fractions that you can rewrite the expression as the multiplication of the reciprocal. So your \[\frac{\frac{x^{2}+8x+15}{x^{2}-9}}{\frac{x+5}{x-5}}\] becomes \[\frac{x^{2}+8x+15}{x^{2}-9}*\frac{x-5}{x+5}\]
Do you know where to go from here?
@eSpeX : That's the part I'm having trouble on.
@eSpeX : The step after that, I mean.
I would start by factoring the left hand fraction. I bet there is some simplification that can be done before multiplying.
@eSpeX : Alright. What do I do after I factor it?
What did you get?
What did you get when you factored \[x^{2}+8x+15\]
@eSpeX : (x+5)(x+3)
Exactly, good work. Now the first part of your equation looks like \[\frac{(x+5)(x+3)}{x^{2}-9}\]So what do you get if you factor the denominator?
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