x^4 - x^3 + x^2 - x + 1 x^4 - 2*x^3 - x^2 - 3*x + 1 x^4 + 11*x^2 - 5*x + 29 x^4 + 31*x^2 + 324 x^4 - x^3 - 84*x^2 + 84*x + 1361 x^4 - x^3 - 8*x^2 - 88*x - 95