Jawaban:
(x - x1)(x - x2) = 0
(x - √5)(x - 2√5) = 0
x² -2x√5 - x√5 + 10 = 0
x² - x√5 - 10 = 0
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Jawaban:
(x - x1)(x - x2) = 0
(x - √5)(x - 2√5) = 0
x² -2x√5 - x√5 + 10 = 0
x² - x√5 - 10 = 0