Solve for the question including steps.

(1 point) Suppose that flat} : (a? + 2X37 2J2- (A) Find all critical values of f. If there are no critical values, enter -1000. If there are more than one, enter them separated by commas. Critical value(s) = (B) Use the second derivative test to nd the m-coordinates of all local maxima of f. If there are no local maxima, enter -1000. If there are more than one, enter them separated by commas. Local maxima at a: = (C) Use the second derivative test to nd the :c-coordinates of all local minima of f. If there are no local minima, enter -1000. If there are more than one, enter them separated by commas. Local minima at m =