How do you simplify #\sqrt { 7} * \sqrt { 28} #?

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Answer 1 · 2017-09-06T00:16:50

#sqrt7*sqrt28=color(blue)14#

Simplify:

#sqrt7*sqrt28#

Prime factorize #sqrt28#.

#sqrt7*sqrt(2xx2xx7)#

Simplify.

#sqrt7*2sqrt(7)#

Rewrite the expression.

#2sqrt(7xx7)#

Simplify.

#2xx7#

Simplify.

#14#