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

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

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

critical points

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

(2, - 1)

Solution steps

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

Find where

\nabla f (x, y)

is equal to zero or undefined

(2, - 1)

y = 1 - \frac{1}{3 t ^{\frac{2}{3}}}

2 x^{3} - 6 x^{2} - 18 x + 54

f (x) = 3 x - 2

x^{2} - 2 x + y^{2} + 2 y + 1

f (x) = x^{2} y - 4 y^{2} - x^{2} + 5

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