\(\Leftrightarrow\left(2x-1\right)\left(2x+1\right)-\left(2x+1\right)\left(3x-5\right)=0\)
\(\Leftrightarrow\left(2x+1\right)\left(2x-1-3x+5\right)=0\)
\(\Leftrightarrow\left(2x+1\right)\left(4-x\right)=0\)
\(\Rightarrow\left[{}\begin{matrix}2x+1=0\\4-x=0\end{matrix}\right.\)
\(\Rightarrow\left[{}\begin{matrix}x=-\frac{1}{2}\\x=4\end{matrix}\right.\)