Question

How do you simplify `root3(k^-4) * root3( k^4)`?

Answer 1

Have a look:

Explanation:

For multiplication between roots (of the same type) you can use one root only as:
`root3(k^-4*k^4)=`
also `k^-4=1/k^4` so you get:
`=root3(k^4/k^4)=root3(1)=1`