Persamaan kuadrat
[tex] {x}^{2} - 3x - 18 = 0 \\ (x + 3)(x - 6) = 0 \\ x1 = - 3 \: dan \: x2 = 6 \\ \\ x2 - x1 \\ 6 - ( - 3) \\ 6 + 3 \\ 9 \: (A)[/tex]
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Persamaan kuadrat
[tex] {x}^{2} - 3x - 18 = 0 \\ (x + 3)(x - 6) = 0 \\ x1 = - 3 \: dan \: x2 = 6 \\ \\ x2 - x1 \\ 6 - ( - 3) \\ 6 + 3 \\ 9 \: (A)[/tex]