Question

One of your friends sends you an email asking you to explain how all of the following expressions have the same answer.

The first expression is 3squrt x^3, and the second is x^1/3 * x^1/3 * x^1/3. I understand how these are equal to the same answer.

The third expression is 1 over x^-1

The fourth expression is 11squrt x^5*x^4*x^2.

I don't understand how the last two could equal the same answer as the first two.