Question

How do you write the following expressions in simplified, radical form `16^ (2/3)`?

Answer 1

I found: `4root3(4)`

Explanation:

Remembering that:
`x^(a/b)=rootb(x^a)`
you get:
`16^(2/3)=root3(16^2)=root3(256)=root3(32*8)=2root3(32)=2root3(4*8)=4root3(4)`