log9[log3 (2x-3)]=log25 5log9[log3 (2x-3)]=(log5 5)/(log5 25)log9[log3 (2x-3)]=1/2log3 (2x-3)=9^(1/2)log3 (2x-3)=32x-3=3^32x=30x=15lg3x=0.5lg(x^2+32)lg3x=lg(x^2+32)^0.53x=(x^2+32)^0.59x^2=x^2+328x^2=32x^2=4x=±2 (负号舍去)
是求x的值吗?