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Homework Help: Solving for x in equation (e^2x)-(3e^x)+2=0

  1. Sep 27, 2010 #1
    1. The problem statement, all variables and given/known data
    Solve for x.
    e2x-3ex+2=0


    3. The attempt at a solution
    e2x-3ex+2=0
    -e2x+3ex=2
    ex(3-ex)=2
    lnex(3-ex)=ln2
    x(3-ex)=ln2

    ..not very sure where to go here. Any direction would be appreciated! Thanks
     
  2. jcsd
  3. Sep 27, 2010 #2

    eumyang

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    Homework Helper

    I wouldn't do what you wrote above. Start with this: let w = ex. Then rewrite the equation in terms of w. Does the equation look familiar now?
     
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