Logarithmic Equations and Properties

The video tutorial explains how to solve logarithmic equations by combining logs using properties of logarithms, converting them into exponential form, and solving for x. Two examples are provided: one with common logs and another with base four logs. The tutorial emphasizes checking solutions to ensure they are within the domain of the logarithm.

What is the first step in solving a logarithmic equation with multiple logs?

• Check the solutions

• Isolate the variable

• Combine the logs using logarithm properties

• Convert to exponential form

In the first example, what operation is used to combine the logs?

• Addition

• Subtraction

• Multiplication

• Division

Why is x = -5 not a valid solution in the first example?

• It results in a negative logarithm

• It makes the equation undefined

• It is not a real number

• It does not satisfy the equation

What property is used to combine the logs in the second example?

• Change of base property

• Power property

• Quotient property

• Product property

What is the base of the logarithms in the second example?

• 2

• e

• 4

• 10

Tags

CCSS.8.EE.A.2

What is the result of 4 squared in the second example?

• 16

• 20

• 8

• 12

What method is used to solve the equation after converting to exponential form in the second example?

• Completing the square

• Graphing

• Factoring

• Cross-multiplication

Tags

CCSS.7.EE.B.4A

What is the simplified solution for x in the second example?

• 15/4

• 5/22

• 22/5

• 66/15

Why is it important to verify the solution in logarithmic equations?

• To confirm the solution is positive

• To verify the solution is an integer

• To check if the solution satisfies the original equation

• To ensure the solution is a real number

What is the final step in solving a logarithmic equation?

• Convert to exponential form

• Verify the solution

• Combine the logs

• Solve for the variable