How do you simplify $sqrt21*sqrt14$ #?

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Answer 1 · 2018-06-09T16:30:32

$7sqrt6$

$sqrt21*sqrt14$

Use the rule:

$sqrta * sqrtb = sqrt(a*b)$

$sqrt21*sqrt14 = sqrt(21*14)=sqrt294=sqrt(7*7*6)$

$=sqrt(7^2*6)=7sqrt6$

How do you simplify sqrt21*sqrt14sqrt21*sqrt14#?