How do you multiply #5sqrt8 * 4sqrt7#?

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Answer 1 · 2018-05-28T19:08:38

#40sqrt(14)#

First, you would simplify #sqrt(8)# to #2sqrt(2)#, so the expression would look like:

#5 xx 2sqrt(2) xx 4sqrt(7)#

Then, simplify further so the expression would look like:

#5 xx 2 xx 4sqrt(2 xx 7)#

Multiply and you will get

#5 xx 2 xx 14sqrt(14)#

Simplify that further and you'll get

#40sqrt(14)#