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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 8: b1:phân tích đa thức thành nhân tử a)4x^2-12x+9 b)4x^2+4x+1 c)1+12x+36x^2 d)(3x+1)^2-4(x-2)^2 e)9(2x+3)^2-4(x+1)^2 f)4b^2c-(b^2+c^2-a^2)^2 GIÚP VỚI Ạ { "@context": "https://schema.org", "@type": "QAPage", "mainEntity": { ...

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