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Verified answer
Materi : Nilai MutlakBahasan : Persamaan Nilai Mutlak
Jawaban : x = - 3 atau x = 3
Langkah - langkah :
|f(x)| = a, ⇒ f(x) = a atau f(x) = - a
|2x| + 2 = 8
|2x| = 8 - 2
|2x| = 6
⇒ 2x = 6
2x = 6
x = 3
⇒ 2x = - 6
2x = - 6
x = - 3