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Math Help - Exponential Rule of this integral?

  1. #1
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    Exponential Rule of this integral?

    S (2x+1)e^((x^2)+x)

    ?? the whole lecture section is missing from this section in my book, :-/ go figure.
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  2. #2
    Like a stone-audioslave ADARSH's Avatar
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    Put x^2 + x = t

    So

    (2x + 1)dx= dt

    Integration now is

    \int e^tdt

    = e^t+c

    = e^{x^2+x}+c

    any more help required
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