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

Toán Lớp 8: <2x mũ 4 + 5x +x mũ 3 - 2 -3x mũ 3> chia x mũ 2 +1 – x

Toán Lớp 8: <2x mũ 4 + 5x +x mũ 3 - 2 -3x mũ 3> chia x mũ 2 +1 – x

Comments ( 2 )

  1. (2x^4 + 5x + x^3 – 2 – 3x^3) : (x^2 + 1 – x)
    ⇔ (2x^4 – 2x^3 + 5x – 2) : (x^2 – x + 1)
    ⇔ (2x^4 – 2x^3 + 2x – 2) : (x^2 – x + 1) + 3x : (x^2 – x + 1)
    ⇔ [2x^3(x – 1) + 2(x – 1)] : (x^2 – x + 1) + 3x : (x^2 – x + 1)
    ⇔ (2x^3 + 2)(x  – 1) : (x^2 – x + 1) + 3x : (x^2 – x + 1)
    ⇔ 2(x^3 + 1)(x – 1) : (x^2 – x + 1) + 3x : (x^2 – x + 1)
    ⇔ 2(x + 1)(x^2 – x + 1)(x – 1) : (x^2 – x + 1) + 3x : (x^2 – x + 1)
    ⇔ 2(x + 1)(x – 1) +  3x : (x^2 – x + 1)
    ⇔ 2(x^2 – 1) + (3x)/(x^2 – x + 1)

  2. Giải đáp ở dưới hình =))
    Thấy hay cho chị⭐⭐⭐⭐⭐ và tlhn nha =))
    Chúc em học tốt =))
     

    toan-lop-8-2-mu-4-5-mu-3-2-3-mu-3-chia-mu-2-1

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

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