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

Toán Lớp 6: 2345-1000:[19-2(2 mũ 1 -18) mũ 2. ]

Toán Lớp 6: 2345-1000:[19-2(2 mũ 1 -18) mũ 2. ]

Comments ( 2 )

  1. Đặt  A= 2345-1000:[19-2$(2^{1} – 18)^{2}$]
    = 2345-1000:[19-2$(2 – 18)^{2}$
    =2345-1000:[19- 2.($-16^{2}$)]
    =2345-1000:(19-2.256)
    =2345-1000:(19-512)
    =2345-1000:493
    =………………………………

  2. 2345-1000:[19-2(2^1-18)^2]
    2345-1000:[19-2(-16)^2]
    2345-1000:[19-2(-256)]
    2345-1000:(19–512)
    2345-1000:(19+512)
    2345-1000:531
    2345-1000/531
    2345-1000/531
    =2343,116761
     

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