[ x^4 - x^3 - 2*x^2 - 25*x - 21, \ x^4 - x^3 + 14*x^2 + 34*x + 393, \ x^4 - 45*x^2 + 1024, \ x^4 - 2*x^3 + 3*x^2 + 74*x + 153, \ x^4 - x^3 - 531*x^2 - 511*x + 58163 ]