Question 159906
{{{x^2+sqrt(2)*x-2=0}}}
{{{x = (-sqrt(2) +- sqrt( 2-4*1*(-2) ))/(2*1) }}} 
{{{x = (-sqrt(2) +- sqrt( 2+8))/(2) }}} 
{{{x = (-sqrt(2) +- sqrt( 10))/(2) }}} 
Approximately,
x=-2.89 and x=0.874

{{{ graph( 300, 300, -5, 5, -10, 10, x^2+1.414x-2) }}}