Question 840451
Complex roots always come in complex conjugate pairs.
{{{f(x)=(x-1)(x-(4-i))(x-(4+i))(x-(6-3i))(x-(6+3i))}}}
{{{f(x)=(x-1)(x^2-8x+17)(x^2-12x+45)}}}
{{{f(x)=x^5-21x^4+178x^3-722x^2+1329x-765}}}