Simplify $\sqrt{7\cdot 2}\cdot \sqrt{2^3\cdot 7^3}$.
Question:
Simplify $\sqrt{7\cdot 2}\cdot \sqrt{2^3\cdot 7^3}$.
Answer:
Let's think step by step.

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Simplify $\sqrt{7\cdot 2}\cdot \sqrt{2^3\cdot 7^3}$.
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