For what values of xxx is the expression x2−5x+6x−1\frac{x^2 - 5x + 6}{x-1}x−1x2−5x+6 non-positive?
x≤1x \leq 1x≤1 or 2≤x≤32 \leq x \leq 32≤x≤3
x<1x < 1x<1 or 2≤x≤32 \leq x \leq 32≤x≤3
1<x≤21 < x \leq 21<x≤2 or x≥3x \geq 3x≥3
x<1x < 1x<1 or x>3x > 3x>3