1, \(\sqrt{x+1}-\sqrt{\dfrac{x-1}{x}}=1\)
2, \(\sqrt{x^2-\dfrac{7}{x}}+\sqrt{x-\dfrac{7}{x^2}}=x\)
3, \(\sqrt{x-\dfrac{1}{x}}+\sqrt{1-\dfrac{1}{x}}=x\)
4, \(x=\left(\sqrt{x}+2\right)\left(1-\sqrt{1-\sqrt{x}}\right)^2\)
5, \(2\sqrt[3]{2x-1}=x^3+1\)
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