[ x^3 + x - 1, \ x^3 - x^2 - 10*x + 8, \ x^3 - x^2 - 50*x + 123, \ x^3 + 31*x - 31, \ x^3 - x^2 - 1560*x + 7975, \ x^3 - x^2 - 1560*x - 20111 ]