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(|x - 2| + 2)(|x - 2| - 6) < 0
|x - 2| < -2 atau |x - 2| > 6
utk |x - 2| < - 2
kuadratkan:
(x - 2)² < 4
x² - 4x < 0
x(x - 4) < 0
0 < x < 4
utk |x - 2| < 6
-6 < x - 2 < 6
-4 < x < 8