x^4 - x^3 - 2*x^2 + 7*x + 2 x^4 - 2*x^3 + 17*x^2 - 16*x + 95 x^4 + 39*x^2 + 16 x^4 - x^3 - 30*x^2 + 21*x + 253 x^4 - x^3 - 50*x^2 - 157*x - 120 x^4 - x^3 + 12*x^2 - 188*x + 376 x^4 + 31*x^2 - 124