Learning Objectives
Introduction
Tutorial
Solving a Logarithmic Equation of the Form
Also use properties of logs to write it so that there is only one log.
If you need a review on properties of logs feel free to go to Tutorial
44: Logarithmic Properties.
If you need a review on the definition of log functions, feel free to
go to Tutorial 43: Logarithmic
Functions.
*Set 1st factor = 0
*Set 2nd factor = 0
Final answer: x = 4.
*Multiply both sides by LCD of x + 2
*one log is isolated
*Solve for x
*Use the calculator to find e squared
Practice Problems
To get the most out of these, you should work the problem out on your own and then check your answer by clicking on the link for the answer/discussion for that problem. At the link you will find the answer as well as any steps that went into finding that answer.
Practice Problems 1a - 1d: Solve the logarithmic equation. Round your answer to two decimal places.
Need Extra Help on these Topics?
The following are webpages that can assist you in the topics that were covered on this page.
http://www.purplemath.com/modules/solvelog.htm
This webpage will help you with solving logarithmic equations.
http://www.sosmath.com/algebra/solve/solve8/s81/s81.html
This webpage gives an example of solving a logarithmic equation.
Go to Get
Help Outside the
Classroom found in Tutorial 1: How to Succeed in a Math Class for
some
more suggestions.
Last revised on March 24, 2011 by Kim Seward.
All contents copyright (C) 2002 - 2011, WTAMU and Kim Seward. All rights reserved.