# Homework Help: Rewriting an expression using a radical.

1. Jan 28, 2010

### Cornraker

1. The problem statement, all variables and given/known data

I have to rewrite the following expression using a radical. I know the correct answer according to my textbook is 4x√x.

2. Relevant equations

$$4x ^{3/2}$$

3. The attempt at a solution

√$$4x^3$$

is this the right start?

2. Jan 28, 2010

### rock.freak667

4x3/2 is 4*x3/2

remember that

$$\sqrt[q]{x^p}=x^{\frac{p}{q}}$$