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anonymous
 one year ago
What is a simpler form of the radical expression?
4^square root 81x^20 y^8
anonymous
 one year ago
What is a simpler form of the radical expression? 4^square root 81x^20 y^8

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\sqrt[4]{81x^{20}y^8}\] like that ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\sqrt[4]{81x ^{20}y ^{8}}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yeah haha you're faster than me

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0this is a lot easier than you think probably how many times does 4 go in to 20?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0right and so \[\sqrt[4]{x^{20}}=x^5\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0using the same reasoning, what do you think \[\sqrt[4]{y^8}\]is ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0well actually \(y^2\) but you get the idea

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and all that is left to do is find \(\sqrt[4]{81}\) make a guess

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hint, it has to be small, since when you multiply it by itself 4 times you get 81

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0nope too big it is true that \(9^2=81\) but \(9^4=81\times 81\) go smaller

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[3^4=3\times 3\times 3\times 3=9\times 9=81\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0final answer: \[\sqrt[4]{81x^{20}y^8}=3x^5y^2\]the radical is gone

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes, you don't need the parentheses though, just write them next to each other

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you very much!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yw wasn't even that hard was it?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Sorry computer froze again, thank you again @satellite73
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