Find the range of xxx for x2−3x+2x2+x−2≤0\frac{x^2 - 3x + 2}{x^2 + x - 2} \leq 0x2+x−2x2−3x+2≤0.
[1,2)[1, 2)[1,2)
(1,2](1, 2](1,2]
(−2,1](-2, 1](−2,1]
∅\emptyset∅