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Verified answer
Materi : Nilai MutlakBahasan : Persamaan Nilai Mutlak
Jawaban : x = - 1 atau x = 5
Langkah - langkah :
|f(x)| = a, ⇒ f(x) = a atau f(x) = - a
2|x - 2| - 1 = 5
2|x - 2| = 6
|x - 2| = 3
⇒ x - 2 = 3
x = 3 + 2
x = 5
⇒ x - 2 = - 3
x = - 3 + 2
x = - 1