Question 960679
A quadratic factor of f(x) is  {{{(x-(1-i))(x-(1+i))=((x-1)+i)((x-1)-i)=x^2-2x+1-i^2}}}
{{{x^2-2x+2}}}.


What happens when you divide  {{{12x^4-23x^3+21x^2+4x-2}}}  by  {{{x^2-2x+2}}}?  Remainder should be 0.