SOLUTION: I am supposed to multiply and simplify these cubed roots by factoring: 3 sqrt y^13 3 sqrt 81 y^18 The answer I got was 3 sqrt 9y^27 but I am sure that's not correct

Algebra ->  Square-cubic-other-roots -> SOLUTION: I am supposed to multiply and simplify these cubed roots by factoring: 3 sqrt y^13 3 sqrt 81 y^18 The answer I got was 3 sqrt 9y^27 but I am sure that's not correct      Log On


   

Question 236114: I am supposed to multiply and simplify these cubed roots by factoring:
3 sqrt y^13 3 sqrt 81 y^18
The answer I got was 3 sqrt 9y^27 but I am sure that's not correct
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
I am supposed to multiply and simplify these cubed roots by factoring:
3 sqrt y^13 3 sqrt 81 y^18
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%28y%5E13%29%5E%281%2F3%29%2A%2881y%5E18%29%5E%281%2F3%29 Cube root is exponent 1/3
= %2881y%5E31%29%5E%281%2F3%29
= %2827y%5E30%2A3y%29%5E%281%2F3%29
= 3y^10 * cube root(3y)