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Mathematics 20 Online
OpenStudy (anonymous):

Evaluate the integral by making the given substitution.http://www.webassign.net/cgi-bin/symimage.cgi?expr=int%20e%2A%2A%28-2%20x%29%20text%28%20%29%20dx%2C%20text%28%20%29%20u%20%3D%20-2%20x

OpenStudy (anonymous):

ok for this i got e^(-2x)+C but its wrong...should it be -2e^x?

OpenStudy (anonymous):

please help thanks so much

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