Find The Critical Points Of The Given Function Then Use The Second Derivative Test To Determine If The Critical


Find the critical points of the given function. Then use the second derivative test to determine if the critical

points correspond to local maxima, local minima, or saddle points of the graph of the function, or if the test is inconclusive. (Order your answers from smallest to largest x, then from smallest to largest y.)

f(x, y) = (x + y)(2y + xy)


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