Question 1041584
Polynomials with real coefficients must have complex roots in complex conjugate pairs.
{{{f(x)=(x-5)(x-(1-3i))(x-(1+3i))(x-(2+3i))(x-(2-3i))}}}
{{{f(x)=(x-5)(x^2-2x+10)(x^2-4x+13)}}}
{{{f(x)=x^5-11x^4+61x^3-221x^2+460x-650}}}