Simply √(3) * √(21)please help

Jeff Wofford asked Feb 25, 2023

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14 votes

Simply

please help

Jeff Wofford asked Feb 25, 2023

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11 votes

We have

$\sqrt[]{3}*\sqrt[]{21}$

we can reduce the expression

$\begin{gathered} \sqrt[]{3}*\sqrt[]{21} \\ \sqrt[]{3}*\sqrt[]{3*7} \\ \sqrt[]{3}*\sqrt[]{3}*\sqrt[]{7} \\ 3\sqrt[]{7} \end{gathered}$

the solution is

$3\sqrt[]{7}$

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