Question 156376
{{{(2x-1)^2=x^2-2}}}
{{{4x^2 - 4x + 1 = x^2-2}}}
{{{3x^2 - 4x + 3 = 0}}}
*[invoke solve_quadratic_equation 3,-4,3]
The onsite solver doesn't make it clear.

It's (2 +/- sqrt(5)i)/3   where i = sqrt(-1)