Simplify (y^-3 - x^-3) / (xy^-1 + x^-1y + 1)(adsbygoogle = window.adsbygoogle || []).push({});

better picture of it here

http://members.rogers.com/agentj/images/math2.jpg

I tried flipping the variables with negative exponents to the numerator and denominator, but then had no idea what to do next

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# Radical fraction expression

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