How do you simplify #5 sqrt40#?

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Answer 1

Mar 6, 2017

#10sqrt(10)#

Starting with #sqrt(40)#

#sqrt(4*10)#

#sqrt(2^2*10)#

#2sqrt(10)#

Now, to include the #5# you have to multiply #2sqrt(10)# by #5# which equals #10sqrt(10)#