Question 1723
{{{ x = (-3 +- sqrt(3^2 - 4*1*3))/(2) }}}

{{{ x = (-3 +- sqrt(9-12))/(2) }}}

{{{ x = (-3 +- sqrt(-3))/(2) }}}

for lower level maths... no solution

or for advanced maths...

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

{{{ x = (-3 +- sqrt(3)i)/(2) }}}

this is the realm of Complex numbers.

cheers
Jon.