ĐKXĐ: \(x\ge\dfrac{1}{4}\)
\(pt\Leftrightarrow\sqrt{2x+1}=2\sqrt{x}-1\)
\(\Leftrightarrow2x+1=4x+1-4\sqrt{x}\)
\(\Leftrightarrow2x=4\sqrt{x}\Leftrightarrow2\sqrt{x}\left(\sqrt{x}-2\right)=0\)
\(\Leftrightarrow\left[{}\begin{matrix}x=0\left(ktm\right)\\x=4\left(tm\right)\end{matrix}\right.\)