What is the critical f(x,y)=x^2-3x+y^2-xy ?

The critical f(x,y)=x^2-3x+y^2-xy is (2,1)

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critical f(x,y)=x^2-3x+y^2-xy

critical points

f (x, y) = x^{2} - 3 x + y^{2} - x y

(2, 1)

Solution steps

x^{2} - 3 x + y^{2} - x y

Find where

\nabla f (x, y)

is equal to zero or undefined

(2, 1)

f (x) = x^{5} - 5 x^{3}

f (x) = \frac{( x ^{2} - 4 )}{x - 1}

f (x) = - x^{2} + 2 x + 2

2 x^{3} + 3 x^{2} - 12 x + 5

x^{3} y + 12 x^{2} - 8 y

What is the critical f(x,y)=x^2-3x+y^2-xy ?
The critical f(x,y)=x^2-3x+y^2-xy is (2,1)