1. Lesson 2

1.9. Explore 5

Mathematics 30-2 Module 7

Module 7: Exponents and Logarithms

 

In Self-Check 2 you solved an exponential equation where each power could be expressed with the same base. How would you solve an equation when the bases cannot be changed to be the same?

 

For example,  is difficult to solve using the same bases because 3 and 2(5) cannot easily be converted to the same base. One method to solve this equation is by using technology to find the solution graphically.



textbook

Read “Example 4” on pages 359 and 360 of the textbook to see how to solve exponential equations when the bases are not powers of one another. Notice how functions corresponding to each side of the equation are graphed to determine a solution. In this lesson, graphing will be used to solve equations that are difficult to convert to the same base.

 

Self-Check 3

 

Complete question 13 on page 364 of your textbook. Answer