Can someone please help me with this? I don't know where to start

Temperature within a circular region
R = {(x, y)| x^2 + y^2

Question

Can someone please help me with this? I don't know where to start

Temperature within a circular region 
R = {(x, y)| x^2 + y^2 <= 25} is given by T(x,y) = 4x^2 -4xy + y^2

Find the global minimum and
maximum temperatures in the region and the points where these extreme temperatures occur

anonymous · Answer

Im sorry i dont know the answer

anonymous · Answer

all right thank you though

anonymous · Answer

no problem. If you think someone can help you then you can tag them in the question by commenting with their name and put an @ symbol before their name.