Which one doesn’t belong

Answer:
Top left
Step-by-step explanation:
It's the only one that has parentheses. All the others don't have them.
I hope this helps!
Answer:
2^-4 the one in the bottom left corner.
Step-by-step explanation:
(-2)^4 = 16
-2^4 = 16
2^-4 = some decimal
4^1/2 = 16