To express \( 2 - 125^* \) (assuming the asterisk represents an exponent, but it's not clear what the exponent is), we need more context. If you're looking to express it in a specific form and "+ is a plus sign," then you need to clarify the structure or meaning of the expression you're interested in.
If you're looking at \( 125 \) in terms of exponent form, \( 125 = 5^3 \). If you meant to say \( -125^4 \), then the answer would be \((-125)^4\).
If this were a question about a specific exponent or different operation, please provide more clarification or check the original question for details.
However, if we take your options:
a) \( 125 \)
b) \( (-125)^5 \)
c) \( (-125)^4 \)
d) \( (-5) \)
The option \( (-125)^4 \) (option c) is in exponent form. Let me know if you meant to ask something else!