14 +(-2-(-2)to the 3rd) power

Online "^" is used to indicate an exponent, e.g., x^2 = x squared.

Is this what you mean?

14 + (-2)(-2^3)

-2^3 = -2 * -2 * -2 = -8

If -8 is multiplied by -2 = 16

Take it from there.