Solve for x, y (complex solution)
\left\{\begin{matrix}x=\sqrt{2}iI^{-\frac{1}{2}}\text{, }y=\frac{\sqrt{2}iI^{\frac{3}{2}}}{6}+3\text{; }x=-\sqrt{2}iI^{-\frac{1}{2}}\text{, }y=-\frac{\sqrt{2}iI^{\frac{3}{2}}}{6}+3\text{, }&I\neq 0\\x\neq 0\text{, }y=3\text{, }&I=0\end{matrix}\right.
Solve for x, y
\left\{\begin{matrix}x=-\sqrt{-\frac{2}{I}}\text{, }y=\frac{\sqrt{-2I}I}{6}+3\text{; }x=\sqrt{-\frac{2}{I}}\text{, }y=-\frac{\sqrt{-2I}I}{6}+3\text{, }&I<0\\x\neq 0\text{, }y=3\text{, }&I=0\end{matrix}\right.
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