Okay so I did that. I got for dx, x = 3 +- sqrt(20)/2
The first part of dy should actually be 6yx^5.
After I have the dx value, I can sub them into the dy equation which gives approximately y = -0.1545 and y = -3.6099. Where do I go from here? There should be 4 separate (x,y) points.
Homework Statement
f(x,y)= 3x5y2 - 30x3y2 + 60xy2 +150
How do I find the critical points where this equation equals zero?
Homework Equations
None?
The Attempt at a Solution
I found the partial derivatives, but I'm stuck now and don't know where to go from here.
dx = 15x4y2...