alo giúp mik vs nhanh vs ạ
\(...\Leftrightarrow P=\dfrac{2}{\sqrt{x}-2}:\dfrac{\sqrt{x}}{\left(\sqrt{x}-2\right)\left(\sqrt{x}+2\right)}+\dfrac{1}{\sqrt{x}-2}\)
\(\Leftrightarrow P=\dfrac{2}{\sqrt{x}-2}.\dfrac{\left(\sqrt{x}-2\right)\left(\sqrt{x}+2\right)}{\sqrt{x}}+\dfrac{1}{\sqrt{x}-2}\)
\(\Leftrightarrow P=\dfrac{2}{1}.\dfrac{\sqrt{x}+2}{\sqrt{x}}+\dfrac{1}{\sqrt{x}-2}\)
\(\Leftrightarrow P=\dfrac{2\left(x-4\right)+\sqrt{x}}{\sqrt{x}\left(\sqrt{x}-2\right)}=\dfrac{2x+\sqrt{x}-8}{x-2\sqrt{x}}\)
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