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Bab Nilai Mutlak
|2x + 4| - |x + 6| = 0
(2x + 4)² - (x + 6)² = 0
(2x + 4 + x + 6) (2x + 4 - x - 6) = 0
(3x + 10) (x - 2) = 0
3x + 10 = 0
3x = -10
x = -10/3
x - 2 = 0
x = 2
Jadi, x = -10/3 atau x = 2