(a+3) (a-3) -a(a+5)=6
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Answered by
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Answer:
9-5a
Step-by-step explanation:
(a+3)(a-3)
=a²-3² [.·.(a+b)(a-b)]
-a(a+5)
=-a²-5a
a²-3²-a²-5a
=9-5a
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