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vuonghongtham07


1. $2\sqrt{x^2+3}-\sqrt{8+2x-x^2}=x$
2. $x\sqrt{x+1}+\sqrt{3-x}=2\sqrt{x^2+1}$
3. $ (\frac{3x+2}{2}). \sqrt{4x^2-x+1}= 3x^2+2x-2$
2. $x\sqrt{x+1}+\sqrt{3-x}=2\sqrt{x^2+1}$
3. $ (\frac{3x+2}{2}). \sqrt{4x^2-x+1}= 3x^2+2x-2$
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