Question 928342


{{{x^2+6x+3=0}}}


{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}...in your case {{{a=1}}}, {{{b=6}}}, and {{{c=3}}}


{{{x = (-6 +- sqrt( 6^2-4*1*3 ))/(2*1) }}}  


{{{x = (-6 +- sqrt( 36-12 ))/2 }}} 

{{{x = (-6 +- sqrt( 24 ))/2 }}} 

{{{x = (-6 +- sqrt(6*4 ))/2 }}} 

{{{x = (-6 +- 2*sqrt(6 ))/2 }}} 

{{{x = (-cross(6)3 +- cross(2)*sqrt(6 ))/cross(2)1 }}}

{{{x = (-3 +- sqrt(6 )) }}}

solutions:

{{{x = -3 + sqrt(6 ) }}}  
or
{{{x = -3- sqrt(6 ) }}}