find the following a²+2ab+b²-9c²
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Answered by
4
Step-by-step explanation:
(a+b)^2 - (3c)^2
(a+b+3c)(a+b-3c)
Answered by
8
a²+2ab+b²-9c²
= (a+b)²-9c²
= (a+b)² -(3c)²
= (a+b+3c)(a+b-3c)
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