Diketahui f(x) = x^3 + ax^2 + bx + 2, f(1) = f(2) = 0, dan

Diketahui f(x) = x^3 + ax^2 + bx + 2, f(1) = f(2) = 0, dan g(x) = x^3 - (a+b)x + ab, maka nilai g(-1) = ...