[ x^4 - 2*x^3 + 11*x^2 - 7*x - 1, \ x^4 - x^3 + 13*x^2 + 2*x + 71, \ x^4 + 73*x^2 + 9, \ x^4 - x^3 - 49*x^2 - 163*x + 1684, \ x^4 - 2*x^3 - 117*x^2 + 118*x - 1812 ]