How do you evaluate #3 log_2 (6) - 3/4 log_2 (81)#? Precalculus Properties of Logarithmic Functions Logarithm-- Inverse of an Exponential Function 1 Answer Konstantinos Michailidis May 22, 2016 It is #3 log_2 (6) - 3/4 log_2 (81)=3log_2 6-3/4*log_2 3^4= log_2 6^3-3/4*4*log_2 3=log_2 6^3-3/(cancel4) (cancel4)*log_2 3= log_2 6^3-log_2 3^3=log_2 (6/3)^3= log_2 (2)^3=3*log_2 2=3# Answer link Related questions What is a logarithm? What are common mistakes students make with logarithms? How can a logarithmic equation be solved by graphing? How can I calculate a logarithm without a calculator? How can logarithms be used to solve exponential equations? How do logarithmic functions work? What is the logarithm of a negative number? What is the logarithm of zero? How do I find the logarithm #log_(1/4) 1/64#? How do I find the logarithm #log_(2/3)(8/27)#? See all questions in Logarithm-- Inverse of an Exponential Function Impact of this question 1702 views around the world You can reuse this answer Creative Commons License