Question 107653
{{{2x^2+26=-10}}}
{{{2x^2+26-26=-10-26}}}
{{{2x^2=-36}}}
{{{2x^2/2=-36/2}}}
{{{x^2=-18}}}
{{{x= sqrt(-3^2*2)}}} or {{{x= -sqrt(-3^2*2)}}}
{{{x= 3sqrt(2)i}}} or {{{x= -3sqrt(2)i}}}
where 
{{{i=sqrt(-1)}}}