expand the following using identity
(a+2a+4c)²
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Answer:
9a² + 24ac + 16c²
Step-by-step explanation:
(a +2a +4c)²
= (3a+4c)²
(a+ b)² = a² + 2ab + b²
= (3a)² + 2(3a)(4c) + (4c)²
= 9a² + 24ac + 16c²
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