Find the minimum value of f ( x , y ) = x 2 + y 2 - 4 x y , subject to the constraint x + y = 10 , by setting the three partial derivatives (from Question 2) equal to 0 and solving the equations simultaneously for x and y,

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Find the minimum value of f ( x , y ) = x 2 + y 2 - 4 x y , subject to the constraint x + y = 10 , by setting the three partial derivatives (from Question 2) equal to 0 and solving the equations simultaneously for x and y,

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Find the minimum value of f ( x , y ) = x 2 + y 2 - 4 x y , subject to the constraint x + y = 10 , by

setting the three partial derivatives (from Question 2) equal to 0 and solving the equations simultaneously for x and y,

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