Question: Find the minimum and maximum values of the function subject to the given constraint. f(x, y, z) = xy + xz, x + y +

Find the minimum and maximum values of the function subject to the given constraint.

f(x, y, z) = xy + xz, x + y + z = 4

f(x, y, z) = xy + xz, x + y + z = 4

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