\left\{ \begin{array} { l } { x + 4 y = 12 } \\ { x y = 12 } \end{array} \right.
Solve for x, y (complex solution)
x=6+2\sqrt{3}i\approx 6+3.464101615i\text{, }y=\frac{-\sqrt{3}i+3}{2}\approx 1.5-0.866025404i
x=-2\sqrt{3}i+6\approx 6-3.464101615i\text{, }y=\frac{3+\sqrt{3}i}{2}\approx 1.5+0.866025404i
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