Suppose $g(x,y) = x^3 - 6 xy + 4 y^2.$ Answer the following.

In each case give all three coordinates of each point: $(a,b,c)$. If there are two or more points separate them by commas. If there are no points answer None.

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1. Find the local maxima of $g.$
Answer:

2. Find the local minima of $g.$
Answer:

3. Find the saddle points of $g.$
Answer:

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