[x^4-11*x^2+9, \
x^4-x^3+21*x^2-21*x+101, \
x^4-x^3-23*x^2+x+86, \
x^4+x^3+11*x^2+101*x+171, \
x^4+x^3+11*x^2-69*x+171]