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

Toán Lớp 8: $\frac{3xy^2-3z}{3xy}$ + $\frac{6x^2y+3z}{3xy}$

Toán Lớp 8: $\frac{3xy^2-3z}{3xy}$ + $\frac{6x^2y+3z}{3xy}$

Comments ( 2 )

  1. Giải đáp+Lời giải và giải thích chi tiết:
    [3xy^2-3z]/[3xy] +[6x^2y+3z]/[3xy]
    =[3xy^2-3z+6x^2y+3z]/[3xy]
    =[3xy(2x+y)]/[3xy]
    =2x+y

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

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