SOLUTION: what is the sum of radical sign 18 and 6 radical sign 2?

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Question 244659: what is the sum of radical sign 18 and 6 radical sign 2?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
SQRT18+6SQRT2
SQRT(9*2)+6SQRT2
3SQRT2+6SQRT2
9SQRT2 ANS.