Calculating Integral of x^2-2x e^-x dx

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Homework Help Overview

The discussion revolves around calculating the integral of the expression (x^2 - 2x)e^-x dx, which falls under the subject area of calculus, specifically integration techniques.

Discussion Character

  • Exploratory, Problem interpretation, Assumption checking

Approaches and Questions Raised

  • The original poster questions whether there is a faster method to solve the integral or if integration by parts is the only viable approach. Some participants seek clarification on the meaning of 'e' in the context of the integral.

Discussion Status

The discussion is ongoing, with participants exploring the method of integration by parts as a potential approach. There is a lack of consensus on alternative methods, and some foundational concepts are being clarified.

Contextual Notes

Participants are addressing the absence of detailed steps in the professor's solution, which may influence their understanding of the problem.

mattibo
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integral (x^2 - 2x) e^-x dx

Im just wondering if there's a fast way to calculate this integral or is the only way to do it by parts twice. The prof didnt show any work in the solution and went right to the solution. Am I missing something obvious?
 
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what is E?
 
sutupidmath said:
what is E?

eulers number (e)
 
I think your plan of using integration by parts is the way to go.
 

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