How do you use the properties of logarithms to rewrite and simplify the logarithmic expression of #log2^4-log2^16#? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer Ernest Z. Jul 5, 2015 #log 2^4 –log 2^16 = -12 log 2# Explanation: Property: #log x^r = rlog x# So #log 2^4 –log 2^16 = 4log 2 – 16log 2# #log 2^4 –log 2^16 = (4 - 16)log 2# #log 2^4 –log 2^16 = -12log 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 1707 views around the world You can reuse this answer Creative Commons License