g(y) = 3x^6 - 4x^4 + 5x^2 - 2 = 3(x^2)^3 - 4(x^2)^2 + 5x^2 - 2 = 3(y - 2)^3 - 4(y - 2)^2 + 5(y - 2) - 2. - Crosslake