Binomial Theorem Expansion

Expand the expression (3a + 4b)3 using the binomial theorem.

27a3 + 108a2 b + 144ab2 + 64b3

27a3 + 144a2 b + 144ab2 + 64b3

a3 + 3a2 b + 3ab2 + b3

108a3 + 27a2 b + 144ab2 + 1

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