Kimberly K.

asked • 11/10/15

Calculus Homework (derivatives)

I was able to answer a I just can't figure out how to do b or c.
Let f(x)= x3e-9x
a) Find the derivative of f ' (x)
I got this answer: -9e-9xx3+3e-9xx2
b) Find the critical numbers for f.
c) Determine where f is increasing or decreasing.

1 Expert Answer


Mir A. answered • 11/10/15

New to Wyzant

Kimberly K.

Thank you!


Mir A.

Sure, my pleasure. If you need tutoring on Calculus, let me know, I can help through the Wyzant online tutoring platform.


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