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(3x -2) (3x +2) = 0
3x -2 = 0
3x = 2 -----> x₁ = 2/3
3x +2 = 0
3x = -2 -----> x₂ = -2/3
Jadi, himpunan penyelesaiannya adalah {(2/3, -2/3)}.
Itu jawabannya.