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- 2x² - 5x + 12 = 0
2x² + 5x - 12 = 0
(2x - 3 )(x + 4) = 0
2x - 3 = 0 atau x + 4 = 0
2x = 3 x = - 4
x = 3/2
Hp = { - 4 , 3/2}