[ x^4 - x^3 - 15*x^2 - 18*x - 4, \ x^4 - x^3 - 12*x^2 + 20*x + 24, \ x^4 + 13*x^2 - 41*x + 32, \ x^4 + 19*x^2 + 900, \ x^4 - x^3 + 805*x^2 + 1622*x + 65596 ]