[ x^4 - x^3 - 15*x^2 - 18*x - 4, \ x^4 - x^3 - 7*x^2 - 22*x - 8, \ x^4 - 2*x^3 - 3*x^2 + 4*x + 63, \ x^4 - x^3 - 7*x^2 + 11*x + 3, \ x^4 - 2*x^3 + 22*x^2 - 21*x - 146, \ x^4 + 9*x^2 + 625, \ x^4 + 41*x^2 + 1025, \ x^4 - x^3 + 600*x^2 + 1212*x + 36896 ]