Find and classify the critical points in the function: f(x, y) = x^2 + 4xy + 2y^2 + 4x - 8y + 3© BrainMass Inc. brainmass.com March 4, 2021, 5:50 pm ad1c9bdddf
Solution. Let fx=2x+4y+4=0, fy=4x+4y-8=0. Solving them, we get
The solution contains the standard way to find and classify the critical points of a function.