Find the exact solution, in its simplest form, to the equation 2ln(2x+1) - 10 = 0.

We want to "undo" every step of the equation until we have just x on one side. So first add 10 to each side and then divide both sides by 2 to give ln(2x+1) = 5. Take the exponential of each side to give 2x+1 = e^5. Finally subtract 1 and divide by 2 on each side resulting in x =(e^5 -1)/2.

EB
Answered by Eleanor B. Maths tutor

4704 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

How do you do integration by parts?


The rate of decay of the mass is modelled by the differential equation dx/dt = -(5/2)x. Given that x = 60 when t = 0, solve the quation for x in terms of t.


Solve the simultaneous equations: x+y =2; x^2 + 2y = 12


How to calculate the inverse of a 2x2 matrix


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences