Question

Reduce the equation to one of the standard forms and classify the surface: 4x^2+y^2+4z^2-4y-24z+36=0

Answer 1

ok just complete the squares of all the terms
its ellipsoid

Answer 2

I got: (x^2/28)+((y-2)^2/112)+((z-6)^2/28)=1, which is an ellipsoid. I wanted to check though if I was on the right track.

Answer 3

Thanks!