Find the set of all xxx such that x2−x−2x2+x−2≥0\frac{x^2 - x - 2}{x^2 + x - 2} \geq 0x2+x−2x2−x−2≥0.
(-\infty, -2] \cup (-1, 1) \cup [2, \infty)
(-\infty, -2] \cup (1, \infty)
(-2, -1) \cup (1, 2)
(-\infty, -2) \cup (-1, 1) \cup (2, \infty)