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4x2 + 4x + 1 + 2 = 2x2 - x
Kemudian dirapihin jadi
2x2 + 5x + 3 = 0
Difaktorin jadi
(X+2) (2x + 3) = 0
Jadinya x = -2 dan x = -2/3 (A)
Coba dicek lagi ya.. kalo bener, boleh ya dijadikan jawaban terbaik.. thank you hihi :)