Evaluate (complex solution)
AE=EF\text{ and }EF=F
Solve for F
\left\{\begin{matrix}F=0\text{, }&E=0\text{ or }A=0\\F=A\text{, }&E=1\end{matrix}\right.
Solve for E
\left\{\begin{matrix}E=0\text{, }&F=0\\E=1\text{, }&A=F\\E\in \mathrm{R}\text{, }&A=0\text{ and }F=0\end{matrix}\right.
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