I’ve been trying to figure this out for a long time :(

Answer:
It would be 15.
Step-by-step explanation:
If you plug the numbers in where they belong you get the equation,
-2 + 3^3 - 2 -8. Solve the 3^3 to get 27, -2 +27 -2 -8 would be the new equation. Then you solve for it and get 15.