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✨ Jawaban Terbaik ✨

妳是指這裡嗎?
4x^2+4x+1=5
➡️ 移項:4x^2+4x-4=0
➡️化簡係數:X^2 +x-1=0
➡️係數同x2: 2X^2 +2x-2=0

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