SOLUTION: what is 4 radical 20 multiplied by radical 10

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Question 1064492: what is 4 radical 20 multiplied by radical 10
Answer by Boreal(15235) About Me  (Show Source):
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4 sqrt (20)*sqrt (10)
that is 4 sqrt (200)
sqrt (200)=sqrt(100)*sqrt (2)=10 sqrt (2)
4*10 sqrt (2)=40 sqrt (2)