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December 19, 2014

December 19, 2014

Posted by **Amy** on Sunday, January 23, 2011 at 10:53pm.

2. (x)/(x^2-81)-(9)/(81-x^2) =

For the first one the answer was 16x^8/25 but I don't know how to get that. For the second one the answer is 1/x-9 and I also don't know how to get that one.

- Math please help -
**Reiny**, Sunday, January 23, 2011 at 11:08pmAmy , you should check if your previous same post has been answered before posting it again

http://www.jiskha.com/display.cgi?id=1295837377

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