Find all points on the surface given below where the tangent plane is horizontal. z=x²-3xy-y²-44x + y

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Q: -5 -4 Ef +3 graph below is the function f (x) -3-2 -3) = lim f(x) = -3- f(x) = f(x)= 5 4 3- 2 +…

A: Explanation of the answer is as follows

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Q: answers as needed. Type your tion set of |x^(2)+x|=6.

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