Question: find the max and minimum values and the points they occur at of the function f(x,y,z)=3x-y-3z subject to x^2+2z^2=100 and x+y-z=-5

find the max and minimum values and the points they occur at of the function f(x,y,z)=3x-y-3z subject to x^2+2z^2=100 and x+y-z=-5

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