Godzio:

zał x≠1 . x≠6
| | −4x +6 | |
1+ |
| ≤0 /* (x(x−1))2
|
| | x(x−1) | |
x
2(x−1)
2 + x(x−1)(−4x+6) ≤0
(x−1)( x
2(x−1) + x(−4x+6) ) ≤0
(x−1)(x
3−x
2−4x
2 + 6x) ≤0
(x−1)(x
3 − 5x
2 + 6x) ≤0
(x−1)(x
3 − 3x
2 − 2x
2+6x) ≤0
(x−1)(x
2(x−3) − 2x(x−3)) ≤0
(x−1)(x−3)(x
2−2x)≤0
x(x−1)(x−3)(x−2)≤0
x=0 v x=1 v x=3 v x=2
x∊(0,1) ∪ <2,3>