315x Filetype PDF File size 2.24 MB Source: jjrandell.files.wordpress.com
Section 7.4 notes April 18, 2016
7.4 Solving Exponential Equations Using Logarithms
Note: To solve exponential equations which can
be written as the same base we make the bases
the same and make the exponents equal.
x
Solve 2 = 8
1
Section 7.4 notes April 18, 2016
Note: Another way to solve exponential
equations is by taking the log or ln of both sides
of the equation and using our laws of exponents
we can solve for x.
2
Section 7.4 notes April 18, 2016
When we cannot make the bases of exponential
equations equal we can take the log or ln of both
sides to solve.
Example: Solve
3x = 7
3
Section 7.4 notes April 18, 2016
Example: Solve
3x1 = 20
4
no reviews yet
Please Login to review.