CPM Homework Help : PC3 Problem 5-121

CPM Homework Banner

Home > PC3 > Chapter 5 > Lesson 5.2.5 > Problem 5-121

5-121.

Solve each of the following equations. Use exact values.

$\log(x+3)=2$
Step (a):
$10^2=x+3$

$\ln(x+3)=3$
Step (b):
$e^3=x+3$

$\ln(3)+\ln(x)=4$
Step (c):
$\ln(3x)=4$

$\ln(x+4)−\ln(x)=2$
Steps (d):
$\ln\left(\frac{x+4}{x}\right)=2$
$\frac{x+4}{x}=e^{2}$

© 2022 CPM Educational Program. All rights reserved.