In the case of

, the power is raised to another power and these are multiplied together to simplify the term. This property is called the
power of a power property.
The power of a power property just tells us that when the power is raised to another power, we can simply multiply these powers together. Let's take for example the given.

, when expounded, is just equal to:

.
Same will hold true for all powers raised to another power.