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 1687 views around the world You can reuse this answer Creative Commons License