x^4 - x^3 + 4*x^2 - 20*x + 23 x^4 - x^3 + 9*x^2 - 14*x + 4 x^4 + 25*x^2 + 729 x^4 - x^3 - 576*x^2 + 1720*x + 9883 x^4 - 2291*x + 13746