SOLUTION: Simplifying Rational Expression x^2 - 3x - 10/x^2 - x - 20

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Question 33260: Simplifying Rational Expression
x^2 - 3x - 10/x^2 - x - 20

Answer by sarah_adam(201)   (Show Source): You can put this solution on YOUR website!
[ - 3x -10]/[ - x -20]
factorizing numerator:
[ - 3x -10]
-5x +2x -10
x(x-5)+2(x-5)
(x+2)(x-5)
factorizing denominator
[-x-20]
[-5x+4x-20]
x(x-5)+4(x-5)
(x+4)(x-5)
therfore the given given expression can be written as
/
cancelling (x-5) in both numerator and denominator we get

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