text: i need help with a log problem? does anyone know how to do these problems?  http://img.photobucket.com/albums/v499/unforgetful_tears/mth.jpg  click on the link  thank you. for the first one, ln x = 63, just rewrite the equation in exponential form:  x = e^63  for the next one, remember that ln e^5x = 5x, and you're pretty much there.  for the third one, note that it is quadratic in e^x, so you can use any of the techniques for solving quadratics.  as a clue, suppose we say y = e^x,  then your problem becomes  y^2 - 6y + 8 = 0  solve that for y, then remember that y = e^x.  you'll need to take the natural log of both sides to get your final answer.  hope that helps.