SOLUTION: How to simplify this problem? (9/x - 3/x2) / (9 - 1/x2)

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Question 308288: How to simplify this problem?
(9/x - 3/x2) / (9 - 1/x2)
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
(9/x - 3/x2) / (9 - 1/x2)
.
9x-3 /x^2 / 9x^2-1 /x^2
9x-3/9x^2-1
3(3x-1) / (3x+1)(3x-1)
3/(3x+1)