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

Toán Lớp 7: Bài 1:Thu gọn đơn thức a)xy^3=(3xy)^2z giúp mk nhanh vs ạ

Toán Lớp 7: Bài 1:Thu gọn đơn thức
a)xy^3=(3xy)^2z
giúp mk nhanh vs ạ

Comments ( 2 )

  1. $\begin{array}{l}
    x{y^3} – {\left( {3xy} \right)^2}z\\
     = x{y^2}\left( {y – 3xyz} \right)
    \end{array}$
     

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

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