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Simplify square root of 20

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Answer to a math question Simplify square root of 20

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Adonis
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105 Answers
$\sqrt{ 4 \times 5 }$
$\sqrt{ {2}^{2} \times 5 }$
$\sqrt{ {2}^{2} }\sqrt{ 5 }$
$\begin{align*}&2\sqrt{ 5 } \\&\approx4.47214\end{align*}$

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