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18
1 x 18
2 x 9
6x² - 7x - 3
6x² + 2x - 9x - 3
2x(3x + 1) - 3(3x + 1)
(2x - 3)(3x + 1)
2x - 3 = 0 atau 3x + 1 = 0
2x = 3 3x = - 1
x = 3/2 x = -1/3