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

Toán Lớp 6: tìm số nguyên tố xy (x

Toán Lớp 6: tìm số nguyên tố xy (x

Comments ( 1 )

  1. Giải đáp:
    $3^{2}$ (x – y)
    Lời giải :
    \overline{xy} – \overline{yx} = 10 x – y – 10 y – x = 9x – 9y = $3^{2}$ (x – y)

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

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