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

Toán Lớp 7: (9/16)^3. (32/9)^3-(0,8)^2.(-5)^2

Toán Lớp 7: (9/16)^3. (32/9)^3-(0,8)^2.(-5)^2

Comments ( 2 )

  1. (9/16)^3. (32/9)^3-(0,8)^2. (-5)^2
    =(9/16. 32/9)^3-[0,8.(-5)]
    =2^3-4^3
    =-8
     

  2. (9/16)^3. (32/9)^3-(0,8)^2.(-5)^2
    =(9/16. 32/9)^3-(0,8.(-5))^2
    =2^3-(-4)^2
    =8-16
    =-8

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

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