$\left\{\begin{matrix}B=\frac{2x+5}{DHUx\left(AP\right)^{2}}\text{, }&x\neq 0\text{ and }D\neq 0\text{ and }P\neq 0\text{ and }U\neq 0\text{ and }H\neq 0\text{ and }A\neq 0\\B\in \mathrm{C}\text{, }&\left(A=0\text{ or }H=0\text{ or }U=0\text{ or }P=0\text{ or }D=0\right)\text{ and }x=-\frac{5}{2}\end{matrix}\right.$

$\left\{\begin{matrix}B=\frac{2x+5}{DHUx\left(AP\right)^{2}}\text{, }&x\neq 0\text{ and }D\neq 0\text{ and }P\neq 0\text{ and }U\neq 0\text{ and }H\neq 0\text{ and }A\neq 0\\B\in \mathrm{R}\text{, }&\left(A=0\text{ or }H=0\text{ or }U=0\text{ or }P=0\text{ or }D=0\right)\text{ and }x=-\frac{5}{2}\end{matrix}\right.$

$\left\{\begin{matrix}A=-\frac{iB^{-\frac{1}{2}}D^{-\frac{1}{2}}H^{-\frac{1}{2}}U^{-\frac{1}{2}}x^{-\frac{1}{2}}\sqrt{-2x-5}}{P}\text{; }A=\frac{iB^{-\frac{1}{2}}D^{-\frac{1}{2}}H^{-\frac{1}{2}}U^{-\frac{1}{2}}x^{-\frac{1}{2}}\sqrt{-2x-5}}{P}\text{, }&x\neq 0\text{ and }D\neq 0\text{ and }P\neq 0\text{ and }U\neq 0\text{ and }H\neq 0\text{ and }B\neq 0\\A\in \mathrm{C}\text{, }&\left(B=0\text{ or }H=0\text{ or }U=0\text{ or }P=0\text{ or }D=0\right)\text{ and }x=-\frac{5}{2}\end{matrix}\right.$