What is the critical f(x,y)=x^2+2xy+2y^2-8x+6y ?

The critical f(x,y)=x^2+2xy+2y^2-8x+6y is (11,-7)

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critical f(x,y)=x^2+2xy+2y^2-8x+6y

critical points

f (x, y) = x^{2} + 2 x y + 2 y^{2} - 8 x + 6 y

(11, - 7)

Solution steps

x^{2} + 2 x y + 2 y^{2} - 8 x + 6 y

Find where

\nabla f (x, y)

is equal to zero or undefined

(11, - 7)

f (x) = 2 x^{2} + 3 x + 4

f (x) = 4 x^{2} - 2 x^{4}

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

f (x) = 2 x^{3} - 3 x^{2} - 20 x

\frac{4 x}{x ^{2} - 9}

What is the critical f(x,y)=x^2+2xy+2y^2-8x+6y ?
The critical f(x,y)=x^2+2xy+2y^2-8x+6y is (11,-7)