Using Properties of Logarithms

How Do You Simplify Logarithms Using the Product Property?

If you're adding logarithms that have the same base, you can use the Product Property of Logarithms to make that job easier! Follow along with this tutorial to see how the Product Property of Logarithms is used to add logarithms with the same base.
How Do You Express a Logarithm in Terms of Common Logarithms?

If you want to find the answer to a logarithm, it can be helpful to change the logarithm so it has the common base of 10. To do that, you need to use the Change of Base Formula. This tutorial shows you how to take a logarithm and rewrite it as a common logarithm.