SOLUTION: how do you find the product: (7 CUBED ROOT 6)(3 CUBED ROOT 9)

Algebra ->  Square-cubic-other-roots -> SOLUTION: how do you find the product: (7 CUBED ROOT 6)(3 CUBED ROOT 9)      Log On


   

Question 1017150: how do you find the product:
(7 CUBED ROOT 6)(3 CUBED ROOT 9)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
how do you find the product:
(7 CUBED ROOT 6)(3 CUBED ROOT 9)
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It's cube root, not cubed root.
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When the index is the same, 3 in this case, multiply what's under the radicals.
7%2Aroot%283%2C6%29%2A3%2Aroot%283%2C9%29+=+21%2Aroot%283%2C54%29
= 21%2Aroot%283%2C27%29%2Aroot%283%2C2%29
= 21%2A3%2Aroot%283%2C2%29
= 63%2Aroot%283%2C2%29