Question: Test the functions for local maxima and minima and saddle points. Find each functions value at these points. (x, y) = 5x 2 + 4xy

Test the functions for local maxima and minima and saddle points. Find each function’s value at these points.

ƒ(x, y) = 5x2 + 4xy - 2y2 + 4x - 4y

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