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

Toán Lớp 8: x ³ + 2x ² – x – 2 jup mk vs ah tks nhiêuf

Toán Lớp 8: x ³ + 2x ² – x – 2
jup mk vs ah tks nhiêuf

Comments ( 2 )

  1. Giải đáp+Lời giải và giải thích chi tiết:
       x^3+2x^2-x-2
    =x^2(x+2)-(x+2)
    =(x+2)(x^2-1)
    =(x+2)(x-1)(x+1)

  2. x^3 + 2x ^2 – x – 2
    <=>x^2(x+2)-(x+2)
    <=>(x+2)(x^2-1)
    <=>(x+2)(x-1)(x+1)
    @thew
     

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

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