What is the critical f(x,y)=x^3-y^3+xy^2+5x^2y ?

The critical f(x,y)=x^3-y^3+xy^2+5x^2y is (0,0),(0,0)

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critical f(x,y)=x^3-y^3+xy^2+5x^2y

critical points

f (x, y) = x^{3} - y^{3} + x y^{2} + 5 x^{2} y

(0, 0), (0, 0)

Solution steps

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

Find where

\nabla f (x, y)

is equal to zero or undefined

(0, 0), (0, 0)

f (x) = 2 sec (x) + tan (x)

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

f (x, y) = 4 + x^{3} + y^{3} - 3 x y

4 x^{3} - 4 x

f (x, y) = x^{3} y + 12 x^{2} - 8 y

What is the critical f(x,y)=x^3-y^3+xy^2+5x^2y ?
The critical f(x,y)=x^3-y^3+xy^2+5x^2y is (0,0),(0,0)