Find the set of all xxx satisfying 1x2−9<1x2−4\frac{1}{x^2 - 9} < \frac{1}{x^2 - 4}x2−91<x2−41.
(−3,−2)∪(2,3)(-3, -2) \cup (2, 3)(−3,−2)∪(2,3)
(−∞,−3)∪(3,∞)(-\infty, -3) \cup (3, \infty)(−∞,−3)∪(3,∞)
(−2,2)(-2, 2)(−2,2)
(−∞,−3)∪(−2,2)∪(3,∞)(-\infty, -3) \cup (-2, 2) \cup (3, \infty)(−∞,−3)∪(−2,2)∪(3,∞)