Question 889141
{{{f(x)=(x-(-1+sqrt(2)i))(x-(-1-sqrt(2)i))}}}
{{{f(x)=(x+1-sqrt(2)i))(x+1+sqrt(2)i))}}}
{{{f(x)=x^2+x+sqrt(2)ix+x-sqrt(2)ix+(1-sqrt(2)i)(1+sqrt(2)i)}}}
{{{f(x)=x^2+2x+(1-sqrt(2)i+sqrt(2)i-2i^2)}}}
{{{f(x)=x^2+2x+(1+2)}}}
{{{highlight(f(x)=x^2+2x+3)}}}