Question 854658
Complex roots always come in conjugate pairs.
{{{f(x)=(x-5i)(x+5i)(x-(6+i))(x-(6-i))}}}
{{{f(x)=(x^2+25)(x^2-12x+37)}}}
{{{f(x)=x^4-12x^3+62x^2-300x+925}}}