Factorie (7a2 - 63b2)
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Answered by
13
Answer:
7(a+3b)(a-3b)
Step-by-step explanation:
7a^2-63b^2
=7(a^2-9b^2)
=7(a^2-(3b)^2)
=7(a+3b)(a-3b)
Answered by
10
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