[ x^4 - x^3 + 2*x^2 + 4*x + 3, \ x^4 - x^3 + 5*x - 1, \ x^4 - 2*x^3 + 4*x^2 - 3*x + 8, \ x^4 - 2*x^3 + 8*x^2 - 7*x - 17, \ x^4 + 5*x^2 + 81, \ x^4 - x^3 - 76*x^2 - 74*x + 393, \ x^4 + 13*x^2 + 117 ]