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Kelas 10 MatematikaBab Persamaan dan Fungsi Kuadrat
f(x) = x² + 3x - 10
a = 1; b = 3; c = -10
Diskriminan = D
D = b² - 4ac
D = 3² - 4 . 1 . (-10)
D = 9 + 40
D = 49