x^4 - x^3 + 10*x^2 - 9*x + 26 x^4 - x^3 - 16*x^2 - 7*x + 27 x^4 + 27*x^2 + 64 x^4 - x^3 - 5*x^2 + 8*x + 64 x^4 - x^3 - 5*x^2 + 8*x + 21 x^4 - 2*x^3 - 20*x^2 + 21*x - 8 x^4 - x^3 - 177*x^2 - 680*x - 667