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Giải PT:
[TEX]sqrt{x^2+x-1}+\sqrt{x-x^2+1}=x^2-x+2.[/TEX]
2,[TEX] 6+3\sqrt{x-2}=2x+\sqrt{x+6}[/TEX]
[TEX]sqrt{x^2+x-1}+\sqrt{x-x^2+1}=x^2-x+2.[/TEX]
2,[TEX] 6+3\sqrt{x-2}=2x+\sqrt{x+6}[/TEX]