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

Toán Lớp 8: C=y(x^2-y^2)(x^2+y^2)-y(y^4-y^4)

Toán Lớp 8: C=y(x^2-y^2)(x^2+y^2)-y(y^4-y^4)

Comments ( 2 )

  1. Giải đáp:
     
    Lời giải và giải thích chi tiết:
    C = y(x^2-y^2)(x^2+y^2)-y(y^4-y^4)
    = y(x^2-y^2)(x^2+y^2)-0
    = y(x^2-y^2)(x^2+y^2)
    = y(x^4-y^4)
    = yx^4 – yy^4
    = yx^4 – y^5 

  2. C=y(x^2-y^2)(x^2+y^2)-y(y^4-y^4)
    =y(x^4-y^4)-y.0
    = x^4y-y^5-0
    = x^4y-y^5

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

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