lg(2^x+2*x-16)=x*(1-lg5)求x值

问题描述:

lg(2^x+2*x-16)=x*(1-lg5)求x值

lg(2^x+2*x-16)=x*(1-lg5)=x*lg2=lg2^x
故2^x+2*x-16=2^x
则x=8