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January 28, 2015

January 28, 2015

Posted by **lewis** on Tuesday, March 17, 2009 at 1:26am.

a^2-b^2/a-b

- math -
**drwls**, Tuesday, March 17, 2009 at 8:31amWhat you have written equals a + b, because the numerator equals (a+b)(a-b); so the a-b term cancels the denominator.

Your question is unclear. Both a and b can be any number.

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