Yea, I didn't have it in the right form. It's for a physics class, so the books says to use a table to help. I think I will try to solve it out anyway. Thanks for the help.
Homework Statement
solve the integral: ∫_(-∞)^∞▒〖x^2 e^(-λ(x-a)^2 ) 〗 dx
where λ and a are positive real constants
The Attempt at a Solution
I tried integration by parts with and without y-substitution but neither worked for me.
Without substitution, I set up the integral to look...