(1/a+3)+(1/a2-9)
(1/a+3)-(1/a²-9)
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Explanation:
(1/a+3)+(1/a²-9)
=(a-3+1)/a²-9)
=a-2/a²-9
(1/a+3)-(1/a²-9)
=a-3-1/a²-9
=a-4/a²-9
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