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= 3x^2 + x - 2
(3x - 2) (x + 1) = 3x^2 +3x - 2x - 2
= 3x^2 + x - 2 (Terbukti)
Jadi, persamaan (3x - 2) (x + 1) = 0
3x - 2 = 0 x + 1 = 0
3x = 2 x = -1
x = 2/3
6
1 x 6
3 x 2
3x² + x - 2
3x² + 3x - 2x - 2
3x(x +1) - 2(x + 1)
(3x - 2)(x + 1)
3x - 2 = 0 atau x + 1 = 0
3x = 2 x = -1
x = 2/3