How do you simplify $\sqrt { 640}$ ?

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Answer 1 · 2017-06-02T15:33:53

See a solution process below:

We can use this rule for multiplying radicals to simplify this expression:

$sqrt(color(red)(a) * color(blue)(b)) = sqrt(color(red)(a)) * sqrt(color(blue)(b))$

$sqrt(640) => sqrt(color(red)(64) * color(blue)(10)) => sqrt(color(red)(64)) * sqrt(color(blue)(10)) => 8sqrt(10)$

How do you simplify \sqrt { 640}\sqrt { 640}?