[ x^4 + 4*x^2 - x + 1, \ x^4 - 2*x^3 + 4*x^2 - 3*x + 4, \ x^4 + 5*x^2 - 7, \ x^4 - 23*x^2 + 225, \ x^4 - x^3 + 7*x^2 + 43*x + 47, \ x^4 - x^3 + 7*x^2 - 63*x + 47, \ x^4 - 2*x^3 + 28*x^2 - 27*x + 275, \ x^4 - x^3 + 7*x^2 - 63*x + 259, \ x^4 + 53*x^2 - 106*x + 848, \ x^4 - x^3 - 99*x^2 - 275*x - 59 ]