soal
2^(x² - 4x + 1) = 2^2(x - 2)
x² - 4x + 1 = 2(x - 2)
x² - 4x + 1 = 2x - 4
x² - 6x + 5 = 0
(x - 1)(x - 5) = 0
x1 > x2
x1 = 5 atau x2 = 1
x1 - x2 = 4 ✔
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soal
2^(x² - 4x + 1) = 2^2(x - 2)
x² - 4x + 1 = 2(x - 2)
x² - 4x + 1 = 2x - 4
x² - 6x + 5 = 0
(x - 1)(x - 5) = 0
x1 > x2
x1 = 5 atau x2 = 1
x1 - x2 = 4 ✔