Express as a rational expression : [(x^3+y^3+z^3-3xyz)/(a^3+b^3+c^3-3abc)] * [(a^2+b^2+c^2-ab-bc-ca)/(x^2+y^2+z^2-xy-xz-zy)]

Question

Show all your work

Answer 1

see below

http://www.jiskha.com/display.cgi?id=1243282835

I am curious.
Where are they still doing this?