Question 890538
Let {{{v=x^2}}};


{{{v^2+v+1=0}}}
{{{v=(-1+- sqrt(1-4))/2}}}
{{{v=(-1+- sqrt(-3))/2}}}
{{{v=(-1+- i*sqrt(3))/2}}}


Next you want {{{x=sqrt(v)}}}
{{{highlight(x=0+- sqrt((-1+- i*sqrt(3))/2))}}}