[ x^4 - x^3 - 48*x^2 + 36*x + 688, \ x^4 + 73*x^2 + 729, \ x^4 - x^3 + 48*x^2 + 500*x + 2096, \ x^4 - 2*x^3 + 65*x^2 - 64*x - 8628 ]