What is the constant term of the expansion of $\left(6x+\dfrac{1}{3x}\right)^6$?
Question:
What is the constant term of the expansion of $\left(6x+\dfrac{1}{3x}\right)^6$?
Answer:
Let's think step by step.

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What is the constant term of the expansion of $\left(6x+\dfrac{1}{3x}\right)^6$?
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