Hi, I would really appreciate any help with these cal 3 exercises, thank you!

Find the local maximum and minimum values and saddle point(s) of the function. If you have three-dimensional graphing software, graph the function with a domain and viewpoint that reveal all the important aspects of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f ( x, y) = x3 - 3x+ 3xy2 local maximum value(s) 2 local minimum value(s) -2 saddle point(s) ( x, y, f ) = X Need Help? Read It Talk to a Tutor 1/3 POINTS PREVIOUS ANSWERS SCALCET8 14.7.024. MY NOTES ASK YOUR TEA Use a graph or level curves or both to find the local maximum and minimum values and saddle points of the function. Then use calculus to find these values precisely. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f ( x, y ) = 5(x - y)e-x2 - y2 local maximum value(s) X local minimum value(s) X saddle point(s) ( x, y, D ) = DNE Need Help? Read It Talk to a Tutor