Find the extremum of f(x,y) subject to the given constraint, and state whether it is a maximum or a minimum. f(x,y) = 4x + 2 + 3y - 2xy; x+y=27 Find the Lagrange function F(x,y,2). F (x,y,2)= Find the partial derivatives F, Fy, and F, F X F1 = There is a value of located at (x, y) = (Type an integer or a fraction. Type an ordered pair, using integers or fractions.)