![image](https://tex.z-dn.net/?f=x%5E%7Blgx-2%7D%3D1000+%5C%5C+ODZ%3A+%5C+x%3E0+%5C%5C+lg%28x%5E%7Blgx-2%7D%29%3Dlg%281000%29+%5C%5C+%28lgx-2%29lgx%3D3+%5C%5C+lgx%3Dt+%5C%5C+%28t-2%29t%3D3+%5C%5C+t%5E2-2t-3%3D0+%5C%5C+D%3D4%2B4%2A3%3D16%3D4%5E2+%5C%5C+t_1%3D3%3D%3Elgx%3D3%3D%3Ex_1%3D10%5E3%3D1000+%5C%5C+t_2%3D-1%3D%3Elgx%3D-1%3D%3Ex_2%3D10%5E%7B-1%7D%3D0%2C1)
0 \\ lg(x^{lgx-2})=lg(1000) \\ (lgx-2)lgx=3 \\ lgx=t \\ (t-2)t=3 \\ t^2-2t-3=0 \\ D=4+4*3=16=4^2 \\ t_1=3=>lgx=3=>x_1=10^3=1000 \\ t_2=-1=>lgx=-1=>x_2=10^{-1}=0,1" alt="x^{lgx-2}=1000 \\ ODZ: \ x>0 \\ lg(x^{lgx-2})=lg(1000) \\ (lgx-2)lgx=3 \\ lgx=t \\ (t-2)t=3 \\ t^2-2t-3=0 \\ D=4+4*3=16=4^2 \\ t_1=3=>lgx=3=>x_1=10^3=1000 \\ t_2=-1=>lgx=-1=>x_2=10^{-1}=0,1" align="absmiddle" class="latex-formula">