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

Toán Lớp 6: 2021^3 .5^2 – 2021^3 ========== 2021^2.2

Toán Lớp 6: 2021^3 .5^2 – 2021^3
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2021^2.2

Comments ( 2 )

  1. Giải đáp + Lời giải và giải thích chi tiết:

    (2021^3. 5^2 – 2021^3)/(2021^2. 2)

    = (2021^3. (5^2 – 1))/(2021^2 . 2)

    = (2021^3. 24)/(2021^2. 2)

    = (2021^3. 2. 12)/(2021^2. 2)

    = 2021. 12

    = 24252.

  2.   { 2021^3. 5^2 – 2021^3 }/{ 2021^2. 2 }

    = { 2021^3. ( 5^2 – 1 ) }/{ 2021^2. 2 }

    = { 2021^3. 24 }/{ 2021^2. 2 }

    = { 2021^3. 2. 12 }/{ 2021^2. 2 }

    = 2021. 12

    = 24252

     

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