Determine the set of all xxx values that satisfy the inequality x2−4x2−9≤0\frac{x^2-4}{x^2-9} \leq 0x2−9x2−4≤0.
(−3,−2]∪[2,3)(-3, -2] \cup [2, 3)(−3,−2]∪[2,3)
[−2,2][-2, 2][−2,2]
(−3,3)(-3, 3)(−3,3)
(−∞,−3)∪(3,∞)(-\infty, -3) \cup (3, \infty)(−∞,−3)∪(3,∞)