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[TEX]\{\sqrt{x^2-(x+y)}=\frac{y}{\sqrt[3]{x-y}}\\2(x^2+y^2) - 3\sqrt{2x-1}=11[/TEX]
[TEX]\{\sqrt{x^2-(x+y)}=\frac{y}{\sqrt[3]{x-y}}\\2(x^2+y^2) - 3\sqrt{2x-1}=11[/TEX]
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