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

Toán Lớp 7: B=(1+2+3+4)mũ 2/-1 mũ 3 +-2 mũ 3 + -3 mũ 3 +-4 mũ 3

Toán Lớp 7: B=(1+2+3+4)mũ 2/-1 mũ 3 +-2 mũ 3 + -3 mũ 3 +-4 mũ 3

Comments ( 2 )

  1. [(1 + 2 + 3 + 4)^2/((-1)^3 + (-2)^3 + (-3)^3 + (-4)^3)]
    = 10^2/(-1 – 2^3 – 3^3 – 4^3)
    = 100/(-1 -8 – 27 – 64)
    = 100/-100
    = -1.

  2. B=(1+2+3+4)^2/((-1)^3+(-2)^3 + (-3)^3 +(-4)^3) 
    =10^2/((-1)+(-8)+(-27)+(-64))
    =100/(-100)
    =-1
    Vậy B=-1

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