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x2-25/x+2-3x-10

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1 Answer

I think the problem is:
 
(x2-25)/(x2-3x-10)
 
The numerator factors to (x+5)(x-5)
 
The denominator factors to (x+2)(x-5)
 
So the rational expression becomes:
 
(x+5)(x-5)/(x+2)(x-5)
 
The (x-5) terms cancel, so the final answer is:
 
(x+5)/(x+2),  x≠-2 or 5