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-3x² - 6x + x + 2 = 0
-3x(x + 2) + 1(x + 2) = 0
(-3x + 1) (x + 2) = 0
-3x + 1 = 0
-3x = -1
x₁ = 1/3
x + 2 = 0
x₂ = -2
Himpunan Penyelesaian = {x₁, x₂} = {1/3, -2}
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