The logarithm of a product rewrites as which combination of logarithms?

1. Logarithms are exponents, and multiplying like bases adds exponents. 2. So the logarithm of a product equals a sum of logarithms. 3. The rule can be applied again and again, so a product of four factors becomes four separate logarithms added. _Source: OpenStax Precalculus (CC BY 4.0), section 4.5 Logarithmic Properties_