How do you evaluate #2 log_2 2 + log_2 8#? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer Bdub Mar 22, 2016 #2log_2 2+log_2 8=5# Explanation: #2log_2 2+log_2 8# #=2log_2 2+log_2 2^3# #=2log_2 2+3 log_2 2#->use property #log_bx^n=n*log_bx# #=2(1)+3(1)#-> use property #log_b b=1# #=5# 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 1504 views around the world You can reuse this answer Creative Commons License