I usually get lost when there are these exponential questions. I'm not used to seeing them.
I must solve for x.
$f(x)=e^{0.5x}+324e^{-0.5x}=0$
If I do $f(x)=\ln e^{0.5x}+\ln 324e^{-0.5x}=\ln 0$
$\ln0$ is undefined.
If I move a term over the equal sign it becomes negative and $\ln \#$ is undefined as well.
Thanks!