Question

How do you solve `lnx+ln3x=12`?

Answer 1

`+-e^6/sqrt3=+-232.92`, nearly

Explanation:

`ln x + ln (3x) = ln (x()(3x))=ln(3x^2)`. Inversely,

`3x^2=e^12`. So,

`x=+-sqrt(e^12/3)`

`=+-e^6/sqrt3`.