1. The problem statement, all variables and given/known data ψ(x,t) = Ae^(-λ|x|)e^(-iωt) This is a rather long problem so I won't get into the details. I understand how to normalize, and most of the rest of the problem. I also have the solutions manual. I just need an explanation of why this goes to Ae^(-2λ|x|). I can't figure it out. 2. Relevant equations I can't think of any that make sense to use. 3. The attempt at a solution I believe it is because you can add the powers of exponentials, such that e^(x)e^(x) = e^(2x). I do not understand how you can just get rid of the imaginary, angular frequency, or time parts... Any explanation would be great.