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Mathematics 7 Online
OpenStudy (anonymous):

How would I solve this problem? I seem to keep getting stuck every time I try to work it. http://i61.tinypic.com/2i8bp6d.jpg

OpenStudy (turingtest):

remember that\[x^{-a}=\frac1{x^a}\]use that on the denominator so that everything is in the numerator

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