1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Exponential - quadratic equation

  1. Sep 13, 2010 #1
    1. The problem statement, all variables and given/known data

    2n=n2

    2. Relevant equations



    3. The attempt at a solution

    I know the solution is 2 and 4. But I have no idea how to solve it without guessing...
     
  2. jcsd
  3. Sep 13, 2010 #2
    Try looking at the LambertW function :) There's actually a third solution apart from the two you already found, its about -0.767
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook