1. The problem statement, all variables and given/known data Find the indefinite integral (preferably using u-substitution): ∫(ex-e-x)2 dx 2. Relevant equations N/A 3. The attempt at a solution To be honest, I'm slightly confused as to which path I'm supposed to take with this, especially since I'm not sure what I should be using u to substitute here. This is one of my attempts at solving the question: ∫[(ex-e-x)2 dx] = ∫[e2x dx] - ∫[e-2x dx] = (e2x / 2) + (1 / 2e2x) + C Could someone please tell me if I have the right answer / I'm on the right track / I'm completely wrong? If the latter, I'd appreciate it if you could help get me on track! Thanks in advance!