Question 6030
Let a=1
Let b=-8
Let c=14
and use the quadratic equation:
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}} 
{{{x = (8 +- sqrt( (-8)^2-4*1*14 ))/(2*1) }}} 
{{{x = (8 +- sqrt( 64-56 ))/(2) }}} 
{{{x = (8 +- sqrt( 8))/(2) }}} 
{{{x = (8 +- 2*sqrt( 2))/(2) }}} 
{{{x = (4 +- sqrt( 2)) }}}