x^4 - x^3 + x^2 - x + 1 x^4 - x^3 - 3*x - 1 x^4 - 2*x^3 + 4*x^2 - 3*x - 9 x^4 - 2*x^3 + 2*x^2 - x + 8 x^4 + 13*x^2 + 81 x^4 - x^3 - 39*x^2 + 39*x + 281 x^4 + 5*x^2 + 45