Let
f(x) = x^3 - 12 x^2 + 21 x - 9.
Use either the first derivative test or the second derivative test
to find the following:

(A) The average of thex values of all local maxima of
f .

Note: If there are no local maxima, enter -1000.

(A) The average of the

Note: If there are no local maxima, enter -1000.

Average of

(B) The average of the

Note: If there are no local minima, enter -1000.

Average of

You can earn partial credit on this problem.