\(B=\left(\dfrac{\sqrt{x}}{\sqrt{x}-2}-\dfrac{1}{2\sqrt{x}-x}\right):\dfrac{1}{\sqrt{x}-2}\)
\(B=\left(\dfrac{\sqrt{x}}{\sqrt{x}-2}+\dfrac{1}{\sqrt{x}\left(\sqrt{x}-2\right)}\right):\dfrac{1}{\sqrt{x}-2}\)
\(B=\left(\dfrac{x+1}{\sqrt{x}\left(\sqrt{x}-2\right)}.\dfrac{\sqrt{x}-2}{1}\right)\)
\(B=\dfrac{x+1}{\sqrt{x}}\)