C
c_believe_o


1.
Timf m de pt sau co nghiem:
[TEX]x^2 + m(\sqrt{x^2 + x + 1} - \sqrt{x^2-x+1}) = \sqrt{x^4+x^2+1} -2m-6[/TEX]
2. [TEX] 3.\sqrt{x} + \frac{3}{2.\sqrt{x}} < 2x+\frac{1}{2x} -7 [/TEX]
Timf m de pt sau co nghiem:
[TEX]x^2 + m(\sqrt{x^2 + x + 1} - \sqrt{x^2-x+1}) = \sqrt{x^4+x^2+1} -2m-6[/TEX]
2. [TEX] 3.\sqrt{x} + \frac{3}{2.\sqrt{x}} < 2x+\frac{1}{2x} -7 [/TEX]