SOLUTION: add or subtract as indicated. simplify. show cancelling,factoring,and the steps for finding the lowest common denominator. assume that no denominator is 0.
a/a^2-4 -
Algebra.Com
Question 630579: add or subtract as indicated. simplify. show cancelling,factoring,and the steps for finding the lowest common denominator. assume that no denominator is 0.
a/a^2-4 - 2/a^2-4
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a/a^2-4 - 2/a^2-4
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Since the denominators are the same, combine the
numerators over the common denominator:
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= (a-2)/[(a-2)(a+2)]
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Cancel the factor common to numerator and denominator to get:
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= 1/(a+2)
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Cheers,
Stan H.
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