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

Toán Lớp 7: 100 – { (-5) mũ 3.(-20 mũ 3-11.[7 mũ 2-5.2 mũ 3 + 8 .(11 mũ 2 -121)]}

Toán Lớp 7: 100 – { (-5) mũ 3.(-20 mũ 3-11.[7 mũ 2-5.2 mũ 3 + 8 .(11 mũ 2 -121)]}

Comments ( 2 )

  1. 100 – {(-5)^{3} . (-20)^{3} – 11 . [7^{2} – 5 . 2^{3} + 8 . (11^{2} – 121)]}
    = 100 – {-125 . -8000 – 11 . [49 – 5 . 8 + 8 . (121 – 121)]}
    = 100 – {1000000 – 11 . [49 – 5 . 8 + 8 . 0]}
    = 100 – {1000000 – 11 . [49 – 40 + 0]}
    = 100 – {1000000 – 11 . 9}
    = 100 – {1000000 – 99}
    = 100 – 999901
    = -999801
     

  2. 100 – [ $(-5)^{3}$ . ( $-20^{3}$ – 11 . [ $7^{2}$ – 5 . $2^{3}$ + 8 . ( $11^{2}$ – 121 )]
    = 100 – [ -125 . ( -8000 – 11 . [ 49 – 40 + 8 . ( 121 – 121 )
    = 100 – [ 1000000 – 11 . [ 9 + 8 . 0 ]
    = 100 – [ 100000 – 99 ]
    =100 – 999901
    =- 999801
    Giải đáp hơi không chắc  vì đề bài hơi khó hiểu :<

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