Find and classify the critical points of the function
f(x,y)=y^(3)+3xy-x^(3)
Find and classify the critical points of the function
f(x,y)=3y^(2)-12x^(2)+12xy^(2)+16x^(3)
2. Find and classify the critical points of the function
f(x,y) =y3+3xy-x3
3. Find and classify the critical points of the function
f(x,y) = 3y2 - 12x2+12xy2+16x3