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

Toán Lớp 8: (????⁴ – ????????² + ???????????? – ????)÷(????² – ???????? + ????)

Toán Lớp 8: (????⁴ – ????????² + ???????????? – ????)÷(????² – ???????? + ????)

Comments ( 2 )

  1. Giải đáp+Lời giải và giải thích chi tiết:
    \begin{array}{c|c} \quad \quad \quad x^4-3x^2+10x-6&x^2-2x+3\\\hline x^4-2x^3+3x^2&x^2+2x-2\\\text{________________________________}\\\quad \quad 2x^3-6x^2+10x-6\\2x^3-4x^2+6x\\\text{________________________________}\\-2x^2+4x-6\\-2x^2+4x-6\\\text{________________________________}\\0\end{array}
    Vậy (x^4-3x^2+10x-6):(x^2-2x+3)=x^2+2x-2

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