[ x^4 + 6*x^2 - 5*x - 3, \ x^4 - x^3 + 23*x^2 + 22*x + 484, \ x^4 - x^3 - 11*x + 32, \ x^4 - x^3 - 33*x^2 - 39*x + 8, \ x^4 + 12*x^2 - 17*x - 12, \ x^4 - x^3 + 56*x^2 + 139*x + 1165 ]