x^4 - x^3 + 2*x^2 - 1 x^4 - x^3 - 6*x^2 + x + 1 x^4 - 2*x^3 + 4*x^2 - 3*x - 2 x^4 - x^3 + 7*x^2 + 2*x + 4 x^4 - 2*x^3 - 24*x^2 + 25*x - 52 x^4 + 13*x^2 + 225 x^4 - 51*x^2 + 833 x^4 - x^3 + 181*x^2 + x + 8042 x^4 - x^3 - 91*x^2 + 137*x + 2687 x^4 - x^3 - 91*x^2 - 594*x - 968