giải giúp mình bài này với ạ

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Câu 3. Rút gọn biểu thức:
\(\left( \frac{\sqrt{x}+1}{\sqrt{x}-1} - \frac{\sqrt{x}-1}{\sqrt{x}+1} + 4\sqrt{x} \right) \left( \sqrt{x} - \frac{1}{\sqrt{x}} \right)\)
(Với \(x > 0\) và \(x \neq 1\))