Question 164980
If the denominator = 0, then we have a case that is undefined or better said DOES NOT EXIST because we cannot divide by zero.

If we set x + 2 and x - 2 to = 0 and solve for x, we find out that x can be any number except x CANNOT = 2 or -2.

LOOK:

x + 2 = 0

x = -2

=========

x - 2 = 0

x = 2

Final answer: x CANNOT EQUAL -2 or 2 for the expressions given in the denominators because it creates division by zero, which does not exist.