x^4 - 2*x^3 + x^2 + 7 x^4 - x^2 - 28 x^4 - x^3 - 2*x^2 - 13*x + 56 x^4 - 53*x^2 + 900 x^4 - x^3 - 42*x^2 + 120*x - 64 x^4 - x^3 - 42*x^2 + 233*x - 403 x^4 - 2*x^3 - 55*x^2 + 56*x + 1575 x^4 - x^3 + 184*x^2 - 784*x + 7168