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Verified answer
Persamaan Kuadrat4y² - 8y - 5 = 0
y² - 2y - 5/4 = 0
y² - 2y = 5/4
y² - 2y + 1 = (5/4)+1
(y - 1)² = (9/4)
y - 1 = √(9/4)
y - 1 = ± 3/2
y - 1 = 3/2
y = 5/2
y-1 = -3/2
y = -1/2