[x^4+2*x^3-4*x^2-5*x-2, \
x^4-x^3-12*x^2+2*x+37, \
x^4-x^3+3*x^2+x-1, \
x^4+x^3-2*x^2+3*x+9, \
x^4-x^3-x^2+2*x+4, \
x^4-x^3+x+2]