Answer:
Whatever is in the parenthesis.
Explanation:
A good way to remember what operation you should do first in these kinds of problems is: PEMDAS.
Each letter in PEMDAS stands for a function in problems, and it gives the order that you should do them in.
P - Parenthesis
E - Exponents
M - Multiplication
D - Division
A - Addition
S - Subtraction
1. Parenthesis; always comes first.
2. Exponents; always comes second.
3. Multiplication/Division; it does NOT matter which one you do first out of these two.
4. Multiplication/Division; whatever you didn't do on #3
5. Addition/Subtraction; it does NOT matter which one you do first out of these two.
6. Addition/Subtraction; whatever you didn't do on #5.