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Math Help - Evaluate integral

  1. #1
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    Evaluate integral

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  2. #2
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    Re: Evaluate integral

    Should work doing integration by parts twice I think.
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  3. #3
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    Re: Evaluate integral

    Quote Originally Posted by Mhmh96 View Post
    Let's denote :

    I= \int (1-x^2)e^{-2x} \, dx

    Rewrite integral into form :

    I=\int e^{-2x} \,dx - \int e^{-2x} \cdot x^2 \,dx

    For the first integral use substitution :

    -2x=t

    For the second integral use integration by parts :

    u=x^2 ~\text{and}~dv=e^{-2x}dx
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