How do you simplify $5sqrt(2x) * 4sqrt(10x)$ ?

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Answer 1 · 2016-04-18T06:06:05

$40xsqrt5$

Put together like terms - multiply proper numbers, then multiply square roots, and then put them all together.

$4*5=20$
$sqrt(2x)*sqrt(10x)=sqrt(20x^2)=2xsqrt5$

And putting them back together,

$20*2xsqrt5=40xsqrt5$

How do you simplify 5sqrt(2x) * 4sqrt(10x)5sqrt(2x) * 4sqrt(10x)?