How do you simplify ${(7 \sqrt{5})}^{2}$ $(7sqrt5)^2$ ?

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How do you simplify ${(7 \sqrt{5})}^{2}$ $(7sqrt5)^2$ ?

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Answer 1 · 2016-06-27T23:23:19

$245$ $245$

Explanation:

${(a \cdot b)}^{2}$ $(a* b)^2$ can be expanded as $(a^{2} \cdot b^{2})$ $(a^2 * b^2)$

So, ${(7 \cdot \sqrt{5})}^{2}$ $(7* sqrt 5)^ 2$ can be written as $7^{2} \cdot {(\sqrt{5})}^{2}$ $7^2 * (sqrt 5)^ 2$ => $49 \cdot 5$ $49* 5$ => $245$ $245$

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How do you simplify ${(7 \sqrt{5})}^{2}$ $(7sqrt5)^2$ ?

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How do you simplify (7√5)2(7sqrt5)^2?

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How do you simplify ${(7 \sqrt{5})}^{2}$ $(7sqrt5)^2$ ?