How do you solve #3^(2x+1)=5^200#? Precalculus Solving Exponential and Logarithmic Equations Logarithmic Models 1 Answer P dilip_k Apr 30, 2016 #=>x=(200log5-log3)/(2log3)# Explanation: #3^(2x+1)=5^200# Taking log on both sides we have #log(3^(2x+1))=log(5^200)# #=>(2x+1)log(3)=200log(5)# #=>2xlog3+log3=200log5# #=>2xlog3=200log5-log3# #=>x=(200log5-log3)/(2log3)# Answer link Related questions What is a logarithmic model? How do I use a logarithmic model to solve applications? What is the advantage of a logarithmic model? How does the Richter scale measure magnitude? What is the range of the Richter scale? How do you solve #9^(x-4)=81#? How do you solve #logx+log(x+15)=2#? How do you solve the equation #2 log4(x + 7)-log4(16) = 2#? How do you solve #2 log x^4 = 16#? How do you solve #2+log_3(2x+5)-log_3x=4#? See all questions in Logarithmic Models Impact of this question 2669 views around the world You can reuse this answer Creative Commons License