How do you calculate log_5 25log525? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer Peter May 9, 2016 22 Explanation: log5(25)log5(25) can be rewritten as log5(5)^2log5(5)2 which is further simplified by the laws of logarithm to 2log5(5)2log5(5). log5(5)=1log5(5)=1 Hence, 2log5(5)=2*(1)=22log5(5)=2⋅(1)=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 10log1010? How do I work in log_10log10 in Excel? See all questions in Common Logs Impact of this question 2702 views around the world You can reuse this answer Creative Commons License