Question #5e413

1 Answer
Sep 13, 2017

You can't.

Explanation:

#2/u^3# can be written as #2u^-3#

Only fractional powers can be as radical expressions.

Examples:

#u^(1/3)# could be expressed as #root(3)(u)#

#u^(1/2)# could be expressed as #sqrt(u)#

This is not conventional, but you could express it as follows:

#2u^(-3/1) => 2/(root(1)(u))#

I have to confess I have never seen this used.