Saturday
October 25, 2014

Homework Help: math hw

Posted by David on Monday, August 4, 2014 at 7:52pm.

2. If a^2-b^2=20 and a+b=2, what is the value of a-b?

I added the a^2-b^2+20 and a+b+20, but i couldn't get the answer to equal a-b.

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