How do you solve log_x49=2? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer Shwetank Mauria Nov 15, 2016 x=7 Explanation: From the definition of logarithm log_a b=m implies a^m=b Hence log_x 49=2 means x^2=49 and hence x=7 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 5023 views around the world You can reuse this answer Creative Commons License