SOLUTION: Multiply 3 square root y^10 * 3 square root 81y^11 Confused! Help!

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Question 156523: Multiply
3 square root y^10 * 3 square root 81y^11

Confused! Help!
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3 square root y^10 * 3 square root 81y^11
(3sqrty^10)(3sqrt81y^11)
3y^5(3*9y^5sqrty)
3y^2(27y^5sqrty)
81y^7(sqrty) answer.