Question

[Phạm Khánh Huyền]

A = \(\frac{x-4\sqrt{x}+2}{\sqrt{x}-2}\)     \(\left(x\ge0;x\ne1\right)\)

B = \(\frac{x\sqrt{x}-1}{x-1}\)   \(\left(x\ge0;x\ne1\right)\)

C = \(\frac{x\sqrt{x}-1}{x-\sqrt{x}}-\frac{x\sqrt{x}+1}{x+\sqrt{x}}+\frac{x+1}{\sqrt{x}}\)\(\left(x\ge2\right)\)

D = \(\sqrt{x+2\sqrt{2x-4}}+\sqrt{x-2\sqrt{2x-4}}\)\(\left(x\ge2\right)\)

E = \(\frac{x+\sqrt{x^2-2x}}{x-\sqrt{x^2}-2x}-\frac{x-\sqrt{x^2}-2x}{x+\sqrt{x^2}-2x}\)