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Verified answer
Bab Nilai MutlakMatematika SMA Kelas X
|2x - 3| ≤ |x + 1|
(2x - 3)² ≤ (x + 1)²
(2x - 3)² - (x + 1)² ≤ 0
(2x - 3 + x + 1) (2x - 3 - x - 1) ≤ 0
(4x - 2) (x - 4) ≤ 0
4x - 2 = 0 atau x - 4 = 0
4x = 2 x = 4
x = 2/4
x = 1/2
HP = { x | 1/2 ≤ x ≤ 4, x ∈ bilangan real }