How do you condense #log (5 x) + log (2 x)#? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer Bdub Mar 22, 2016 #log(5x)+log(2x)##=log (10x^2)# Explanation: #log(5x)+log(2x)# #=log(5x*2x)#-> use property#log_bx+log_by=log_b(xy)# #=log (10x^2)# 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 1481 views around the world You can reuse this answer Creative Commons License