Saturday
April 18, 2015

Homework Help: math

Posted by anonymous on Saturday, September 22, 2007 at 2:39am.

1. [12/(x^2 - 4)] - [(3-x)/(x^2+2x)]
The answer is:
[(x^2 + 7x + 6)/x(x+z)(x-z)
I don't understand how to get that! was the z a typo? even if it's supposed to be a 2 - I don't understand!

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