A^2(-B^2) for A = 4 and B = -5
A^2(-B^2) =
= 4^2 * [-(-5)^2]
= 16 * (-25)
= -400
The correct answer to the question you asked is not in the choices.
Maybe you copied it incorrectly, and you meant
A^2-B^2 for A = 4 and B = -5,
in which case it's
4^5 - 5^2 = 16 - 25 = -9
