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    Integration by parts

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    Determine the indefinite integral: z = (Integral Sign or "Long S")20xe^-4x dx. I got z = 5xe^-4x + 5/4 e^-4x + C - Does that seem right?

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    Solution Preview

    You 99.99% got it.
    There is an sign error.
    the final answer ...

    Solution Summary

    The solution utilizes "integration by parts" technique to obtain the primitive function.