How do you expand #log_3 (9x)#? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer Noah G Mar 8, 2018 Use #log_a(nm) = log_a n + log_a m#. #=log_3 9 + log_3 x# #=2 + log_3x# Hopefully this helps! Answer link Related questions What is the common logarithm of 10? How do I find the common logarithm of a number? What is a common logarithm or common log? What are common mistakes students make with common log? How do I find the common logarithm of 589,000? How do I find the number whose common logarithm is 2.6025? What is the common logarithm of 54.29? What is the value of the common logarithm log 10,000? What is #log_10 10#? How do I work in #log_10# in Excel? See all questions in Common Logs Impact of this question 3256 views around the world You can reuse this answer Creative Commons License