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|x-2|² - 6|x-2| + 8 > 0
a² - 6a + 8 > 0
(a-4)(a-2) > 0
sehingga a > 4 atau a<2
⇔ untuk a > 4 sbb.
|x-2| > 4 ⇒ x - 2 > 4 ∪ x - 2 < - 4
x > 6 ∪ x < -2
⇔ untuk a < 2 sbb.
|x-2| < 2 ⇒ -2 < x - 2 < 2
0 < x < 4
∴ HP = { x | x < -2 atau 0 < x < 4 atau x > 6 , x ∈ R}