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.

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.