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Verified answer
Bab Persamaan KuadratMatematika SMP Kelas VIII
α + 1 = x
α = x - 1
x² - x - 3 = 0
(x - 1)² - (x - 1) - 3 = 0
x² - 2x + 1 - x + 1 - 3 = 0
x² - 3x - 1 = 0