Thanks for your relpy. Okay so I did as you said and plugged in Axe^(-x/b) for Ψ and did some algebra. Then I did the second derivative of Ψ(x) and set them equal to each other.
What I end up with is the following:
http://i.imgur.com/mflUG.png
So does that mean that E=(-hbar^2)/(2mb^2)?
I hope this is in the right place, I'm new here. Anyway, my teacher hasn't shown us an example where U is anything but infinity, Uo, or 0 and I'm completely stumped on part B for this question since U is a function of x
Homework Statement
A particle of mass m moves in a one-dimensional...