What is a simpler form of the radical expression? ^4sqrt 81x^20 y^8 A, 3|x^5|y^2 B. 9|x^25|y^4 C. 9x^25|y^4| D. 3x^5|y^2| answer B some could you check see if its correct

Question

What is a simpler form of the radical expression? ^4sqrt 81x^20 y^8 A, 3|x^5|y^2 B. 9|x^25|y^4 C. 9x^25|y^4| D. 3x^5|y^2|   answer B some could you check see if its correct

zepdrix · Answer

Woops you missed something at the start there:   ^4
:O

anonymous · Answer

oh

anonymous · Answer

would C for answer be right

zepdrix · Answer

You didn't provide the proper equation yet, so I don't know.
What is being raised to the 4th power at the start? :O

anonymous · Answer

thats how the school has it wrote

zepdrix · Answer

OH oh i see, ok, maybe they meant for it to be a 4th root, like this:$$\sqrt[4]{81x^{20}y^8}$$
Is this what it's suppose to look like? :D

anonymous · Answer

yes

zepdrix · Answer

|dw:1348961407106:dw|
Hmm since 3 is the 4th root of 81, we can narrow down our options pretty quickly :D