2:

Wnich power is equivalent to the expression (g-12) 3

Step-by-step explanation:

No idea what the choices were, but think of the 4th row of Pascal's Triangle. The coefficients are 1,3,3,1. So,

(g-12) ^3 = 1*g^3 * (-12) ^0 + 3*g^2 (-12) ^1 + 3*g (-12) ^2 + 1*g (-12) ^3

= g^3 - 36g^2 + 432g - 1728