Alright, so I'll give you some general guidelines and challenge you to solve this on your own!
If we have a number x , a number z, and a number y, then

For example,

Next,

. For example,

Lastly,

. For example,

. In this situation, note that a negative exponent means we have 1 over the actual positive exponent. For example,

Please remember PEMDAS as well -
P - Parenthesis
E- Exponents
M/D - Multiplication/Division
A/S - Addition/Subtraction
Go from top to bottom
Good luck, and feel free to ask any questions!