Question

What is a simpler form of the radical expression?

Answer 1

\[\sqrt[4]{81x ^{20}y ^{8}}\]

Answer 2

notice 81 looks like the square of something, what do you think it's?

Answer 3

do it in chucks so basically
\[(\sqrt{9})\times(x ^{5})\times(y ^{2)}\]
as doing the radical and the powers, you just divide the powers

Answer 4

9?

Answer 5

yes, notice 9 looks like the square of something

Answer 6

3 is the square of 9