nice (but it won't be all real numbers if x cannot be 2 or -2)

really? can we touch, say, y = 0, for instance?Range = y is all real numbers

review the rangeAre these answers right, and if so how do i write it in notation?

yeswould the first one be something like

(-inf, -2) U (-2,2) U (-2, inf)

were the second one correct, this would be it, alas, it isn'tand the second one is it: (-inf, inf)