#### Answer

$e^{3}$

#### Work Step by Step

$\ln x+\ln x^{3}=12\Rightarrow \ln x+3\ln x=12\Rightarrow 4\ln x=12\Rightarrow \ln x=3\Rightarrow x=e^{3}$

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$e^{3}$

You can help us out by revising, improving and updating this answer.

Update this answerAfter you claim an answer you’ll have **24 hours** to send in a draft. An editor
will review the submission and either publish your submission or provide feedback.