Help with these two please!

Find the relative extrema and saddle points of the function. (If an answer does not exist, enter DNE.) f(x, y) = x2 + 6xy + 10y2 - 4y + 4 Relative maximum of f(x, y) = at (x, y) = Relative minimum of f(x, y) = at (x, y) = Saddle point of f(x, y) = at (x, y) = Need Help? Watch It Talk to a Tutor -/1 POINTS LARAPCALC10 7.5.026. 0/12 Submissions Used Find the critical points, relative extrema, and saddle points of the function. (If an answer does not exist, enter DNE.) A(x, y) = x3+ y3 - 3x2+ 15yz+ 3x + 75y + 134 relative maximum of f(x, y) : at (x, y) = relative minimum of f(x, y) = at (x, y ) = saddle point of f(x, y) = at (x, y ) = List the critical point for which the Second-Partials Test fails. ( x , y ) =