x^4 - x^3 - x^2 + 5*x - 3 x^4 - 2*x^3 - 2*x^2 + 3*x + 46 x^4 + 57*x^2 + 625 x^4 - x^3 - 13*x^2 + 20*x - 28 x^4 - 7*x^2 - 175 x^4 - x^3 - 13*x^2 - 87*x + 79