How do you simplify $sqrt(7x^7) sqrt(42x)$ ?

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Answer 1 · 2016-04-30T07:09:30

$=7sqrt6x^4$

$sqrt(7x^7)sqrt(42x)=7^(1/2)x^(7/2)*7^(1/2)6^(1/2)x^(1/2)$
$=7^(1/2+1/2)6^(1/2)x^(7/2+1/2)=7sqrt6x^4$

How do you simplify sqrt(7x^7) sqrt(42x)sqrt(7x^7) sqrt(42x)?