$$\frac{BC}{\sqrt{3}}=\frac{BC}{p+100}$$
$\left\{\begin{matrix}B=0\text{, }&p\neq -100\\B\in \mathrm{C}\text{, }&p=\sqrt{3}-100\text{ or }\left(C=0\text{ and }p\neq -100\right)\end{matrix}\right.$
$\left\{\begin{matrix}C=0\text{, }&p\neq -100\\C\in \mathrm{C}\text{, }&p=\sqrt{3}-100\text{ or }\left(B=0\text{ and }p\neq -100\right)\end{matrix}\right.$
$\left\{\begin{matrix}B=0\text{, }&p\neq -100\\B\in \mathrm{R}\text{, }&p=\sqrt{3}-100\text{ or }\left(C=0\text{ and }p\neq -100\right)\end{matrix}\right.$
$\left\{\begin{matrix}C=0\text{, }&p\neq -100\\C\in \mathrm{R}\text{, }&p=\sqrt{3}-100\text{ or }\left(B=0\text{ and }p\neq -100\right)\end{matrix}\right.$