x^4 - x^3 - 15*x^2 - 18*x - 4 x^4 + 13*x^2 + 729 x^4 - x^3 - 75*x^2 - 88*x - 28 x^4 - x^3 + 682*x^2 + 1376*x + 47392 x^4 - x^3 - 8*x^2 - 356*x - 832