Help me please with this integral (x^2)(e^(-x^4/28))dx. I know I have to do it for parts but I get stuck when I have to integrate e :(

Question

anonymous · Answer

This doesn't look like it has a nice elementary solution... Are you sure it's $x^4$ in the exponent?

anonymous · Answer

Yes. I'm solving $$\frac{ dy }{ dx } - \frac{ x^3 }{ 7 }(y)=4x^2$$ by integral factor and in my result I have to integrate $$\int\limits 4x^2 e^{-x^4/28} dx$$

anonymous · Answer

Ah, if this is for solving a differential equation, you can leave your solution in this non-closed form.

anonymous · Answer

Thank you, I think I'll do that!

anonymous · Answer

yw