# Natural Log and Exponential

## Homework Statement

Trying to solve for K:

ln(1-4k)=-6k

## The Attempt at a Solution

I know that need to take the e of both side, to get 1-4k=e^-6k, but I cannot remember any properties of e to allow me to remove the k from the exponent. Any tips is appreciated.

## Homework Statement

Trying to solve for K:

ln(1-4k)=-6k

## The Attempt at a Solution

I know that need to take the e of both side, to get 1-4k=e^-6k, but I cannot remember any properties of e to allow me to remove the k from the exponent. Any tips is appreciated.

Clearly, $$k=0$$ is a solution.
to find the another solution you need to use an advanced topic:
http://mathworld.wolfram.com/LambertW-Function.html

vela
Staff Emeritus