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nguyenxuanhieu_ctk7


[TEX]{x}^{2}+5x+5\sqrt{{x}^{4}+{x}^{2}+1}+1=0[TEX]
[/TEX]x+4+(x+2)\sqrt{2{x}^{2}+4x+1}[/TEX]
[TEX]6{x}^{2}+7x-7\sqrt{{x}^{3}+1}+5=0[/TEX]
[TEX]({x}^{2}+x+1)\sqrt{{x}^{2}+1}-{x}^{3}-3{x}^{2}+x+4=0[/TEX]
[TEX]6{x}^{2}+7x-7\sqrt{{x}^{3}+1}+5=0[/TEX]
[TEX]({x}^{2}+x+1)\sqrt{{x}^{2}+1}-{x}^{3}-3{x}^{2}+x+4=0[/TEX]