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Diskriminan
D = b² - 4ac
D = 12² - 4(1)(6)
D = 144 - 32
D = 120
Himpunan selesaian
x = -b ± √D per 2a
x = -12 ± √120 per 2(1)
x = -12 ± 2√30 per 2
x = -6 ± √30
Hp = {-6 + √30, -6 - √30}
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_____________________________
Diskriminan
D = b² - 4ac
D = 12² - 4(1)(6)
D = 144 - 32
D = 120
Himpunan selesaian
x = -b ± √D per 2a
x = -12 ± √120 per 2(1)
x = -12 ± 2√30 per 2
x = -6 ± √30
Hp = {-6 + √30, -6 - √30}