Hi Peacewanters2007!
What exactly do you want to do with that? Do you need to expand it? Or is it part of an equation you need to solve?
(2x-2y-2z)^2
solve above!I mean expand using sonme sort of formula
plz dont joke me 4 such a questone I am a student of low level I mean low class oh junior class
or you could use the multinomial theorem
(topsquark's method is perhaps easier, but you'll get a messy expression anyway)