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What is $4 \sqrt{5^{2}}$ $4sqrt(5^2)$ ?

1 Answer

Mar 20, 2018

$20$ $20$

Explanation:

$4 \sqrt{5^{2}}$ $4sqrt(5^2)$

the square and the square root of $5$ $5$ cancel out each other

$= 4 \times 5$ $= 4 xx 5$

$= 20$ $=20$

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