Solvable with out approximation?

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SUMMARY

The integral of the form \(\int x^n e^{x^m} dx\) is generally not solvable without approximation for \(m > 1\). However, if \(n = m - 1\), the integral is solvable. Additionally, for arbitrary positive integers \(k\), the integral can be solved when \(n = km - 1\). These conditions provide a clear framework for determining the solvability of such integrals.

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Is there any way to tell in general if an integral in the form of [tex]\int x^n*e^{x^m} dx[/tex] where n and m are constants is solvable without approximation?
 
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I can't offer you a blinding flash of insight, but if n=m-1, it should be solvable.
 
In general, the answer is no for m>1 (except for n=km-1, for arbitrary positive integer k).
 
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