How do you write the expression as a single natural logarithm #2ln8+2lny#? Precalculus Properties of Logarithmic Functions Natural Logs 1 Answer GiĆ³ Feb 10, 2015 Use the fact that: 1) #lnM+lnN=ln(M*N)# 2) #alnM=lnM^a# to get: #2ln8+2lny=ln(8y)^2# Answer link Related questions What is the natural log of e? What is the natural log of 2? How do I do natural logs on a TI-83? How do I find the natural log of a fraction? What is the natural log of 1? What is the natural log of infinity? Can I find the natural log of a negative number? How do I find a natural log without a calculator? How do I find the natural log of a given number by using a calculator? How do I do natural logs on a TI-84? See all questions in Natural Logs Impact of this question 9001 views around the world You can reuse this answer Creative Commons License