How do you write 9^(3/2) = 27 in log form? Precalculus Properties of Logarithmic Functions Logarithm-- Inverse of an Exponential Function 1 Answer Bill K. Jun 16, 2015 log_{9}(27)=3/2 Explanation: For b>0, b!=1 and y>0, the symbol x=log_{b}(y) represents the unique real number such that b^{x}=y (it's the unique solution of that equation). Since x=3/2 is the unique solution of the equation 9^{x}=27, it follows that log_{9}(27)=3/2. 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 4806 views around the world You can reuse this answer Creative Commons License