[ x^4 - x^3 - 9*x^2 - 8*x - 33, \ x^4 - x^3 - 42*x^2 + 120*x - 64, \ x^4 - 21*x^2 + 2116, \ x^4 - x^3 + 1992*x^2 - 8016*x + 585728 ]