<PRE><B>Question 936703</B>
Add or subtract as indicated.simplify as much as possible,showing all factoring,canceling,and steps for finding the lowest common denominator. Assume that no denominator is zero. 
M/m^2-9 - 3/m^2 -9
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Since the denominators are the same, the lcd is m^2-9.
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Ans:: M/lcd - 3/lcd = (M-3)/lcd
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Cheers,
Stan H.
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