Question 459532
Hey,

So for this one, we need to get rid of the e function so we can deal directly with the x variable. So what you should do is ln both sides:

ln e^(2x) = ln 10.4
When ln comes before e like that it cancels it out and brings whatever the e was holding down:
2x = ln 10.4 => x = (ln10.4)/2

I hope that helps!