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?
<br>You 99.99% got it.
<br>There is an sign error.
<br>the final ...
The solution utilizes "integration by parts" technique to obtain the primitive function.