Question 300285
{{{x^2+6x-4=0}}}
Use the quadratic formula,
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}} 
{{{x = (-6 +- sqrt( 6^2-4*1*(-4) ))/(2*1) }}}
{{{x = (-6 +- sqrt( 52 ))/(2) }}} 
{{{x = (-6 +- 2*sqrt( 13))/(2) }}} 
{{{x = -3 +- sqrt( 13)}}} 
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{{{ graph( 300, 300, -8, 2, -5, 5, x^2+6x-4) }}}