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Megan M.

asked • 09/29/16

Calculus 2 Integration

I'm having trouble understanding this problem.
 
Make the substitution u=ex to express the integrand as a rational function with three linear factors in the denominator, one of which is u, and then evaluate the integral.
 
∫(-17ex-20)/(e2x+5ex+4)
 
 

Kenneth S.

There MUST be a dx at the end of your integration problem.  ALWAYS (when variable is named x.)
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09/29/16

2 Answers By Expert Tutors

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Michael J. answered • 09/29/16

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5 (5)

Mastery of Limits, Derivatives, and Integration Techniques

Megan M.

I found it to be -16ln(ex+4)-ln(ex+1) but webwork is telling me that this is incorrect. Do you see what I did incorrectly?
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09/29/16

Eric C.

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Check my work above. I'm likeeeeee 99% sure I got it right.
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09/29/16

Megan M.

Oh, you did! That was in regards to Micheal & my comment sent about the same time as your response. Your explanation cleared it up for me, thank you!
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09/29/16

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