What is the square root of 21 multiplied by the square root of 14?

1 Answer
Alan P.
Oct 19, 2015

#sqrt(21)*sqrt(14) = 7sqrt(6)#

Explanation:

#color(red)(sqrt(21))*color(blue)(sqrt(14))#

#color(white)("XXX")=color(red)(sqrt(7)*sqrt(3))*color(blue)(sqrt(7)*sqrt(2))#

#color(white)("XXX")=color(red)(sqrt(7))*color(blue)(sqrt(7))*color(red)(sqrt(3))*color(blue)(sqrt(2))#

#color(white)("XXX")=7sqrt(6)#

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