Simplify :- $3^{\frac{2}{3}} \times 7^{\frac{2}{3}}$

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Solution

We have,
$3^{2 / 3} \times 7^{2 / 3}$
$\Rightarrow (3 \times 7)^{2 / 3}$
$\Rightarrow 21^{2 / 3}$

Hence, this is the answer.

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