Kellogg S.

asked • 05/24/22

How do I identify the intervals and relative extrema of g(x)=(x^2)-x-ln(x)

Can someone help me identify g(x)= (x^2)-x-ln(x) in these areas?


a) The intervals on which f(x) is increasing or decreasing.


b) Identify all relative extrema within coordinated points.


c) Identify the intervals of concavity and inflection points.

1 Expert Answer

By:

Kellogg S.

I need help with the algebra :(
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05/24/22

Stephen B.

tutor
The first derivative is 2x - 1 - 1/x. To find where it equals 0, I would get a common denominator and combine all terms into one fraction: (2x^2 - x - 1)/x. Then you need to set both the numerator equal to 0 (solve by factoring) and denominator to 0. Those are your critical points and determine how to set up your sign chart.
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05/24/22

Kellogg S.

Thank you very much!
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05/25/22

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