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Verified answer
Nilai MutlakKelas X
|x + 1| < |x - 5|
|x + 1|² < |x - 5|²
(x + 1)² < (x - 5)²
(x + 1)² - (x - 5)² < 0
(x + 1 + x - 5)(x + 1 - x + 5) < 0
(2x - 4)(6) < 0 [ ÷ 6 ]
2x - 4 < 0
2x < 4
x < 2
HP : {x | x < 2 , x ∈ R}