Question 77368
x^2+2x-15
over
4x^2
divided by
x^2-25
over
2x-10
-----------
Factor where you can to get:
(x+5)(x-3)
over 
4x^2
divided by 
(x+5)(x-5)
over 
2(x-5)
--------------
Invert the denominator and change to multiplication.
(x+5)(x-3)
over 
4x^2
muliplied by 
2(x-5)
over
(x=5)(x+5)
-------------
Cancel any factors common to a numerator and a denominator to get:
(x-3)
over
2x^2
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Cheers,
Stan H.