Solve for p (complex solution)
\left\{\begin{matrix}p=\frac{2A}{x}\text{, }&x\neq 0\\p\in \mathrm{C}\text{, }&A=0\text{ and }x=0\end{matrix}\right.
Solve for A
A=\frac{px}{2}
Solve for p
\left\{\begin{matrix}p=\frac{2A}{x}\text{, }&x\neq 0\\p\in \mathrm{R}\text{, }&A=0\text{ and }x=0\end{matrix}\right.
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