Question

$${ x }^{ 2 } +3x+12=0$$

Answer

x=(-3+sqrt(39)*IM)/2,(-3-sqrt(39)*IM)/2

Solution


Use the Quadratic Formula.
\[x=\frac{-3+\sqrt{39}\imath }{2},\frac{-3-\sqrt{39}\imath }{2}\]