Yes x and y represent different dimensions in general. But also, where did x and y come from? They symbolically represented and generalized stuff from the economics discussion. So what were the actual factors originally being talked about?
x = profits
y = great product/service
z = great place to work
I’m guessing you already know whether those are the same dimension or different dimensions.
Typo? Did you mean to write “unlike terms”? If it’s not a typo you may be confused.