Question

What number(s) should be excluded as values of x in the polynomial?

Answer 1

Last I checked, you can't divide by zero.

Answer 2

well if x = 2 or -2

then you get 2/0 or 0/0

and you can't have that :(

so its x = 2, -2 should be excluded

Answer 3

just -2 or both 2 and -2?

Answer 4

both, because if if you square 2 or -2, they both give you 4, which would turn the bottom 0

Answer 5

Oh, I see. Thanks! (: