[ x^4 - x^3 + 2*x^2 + 4*x + 3, \
x^4 - x^2 + 36, \
x^4 - x^3 - 37*x^2 - 35*x + 81, \
x^4 - x^3 + 2*x^2 - 22*x + 29 ]