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

Toán Lớp 8: (2+1)(2^2+1)(2^4+1)(2^8+1)(2^16+1) – 2^12

Toán Lớp 8: (2+1)(2^2+1)(2^4+1)(2^8+1)(2^16+1) – 2^12

Comments ( 2 )

  1. Giải đáp + Lời giải và giải thích chi tiết:
    (2+1)(2^2+1)(2^4+1)(2^8+1)(2^16+1)-2^12
    =(2-1)(2+1)(2^2+1)(2^4+1)(2^8+1)(2^16+1)-2^12
    =(2^2-1)(2^2+1)(2^4+1)(2^8+1)(2^16+1)-2^12
    =(2^4-1)(2^4+1)(2^8+1)(2^16+1)-2^12
    =(2^8-1)(2^8+1)(2^16+1)-2^12
    =(2^16-1)(2^16+1)-2^12
    =2^32-1-2^12
     

  2. Giải đáp + Lời giải và giải thích chi tiết:
    (2+1)(2^2+1)(2^4+1)(2^8+1)(2^16+1)-2^12
    =(2-1)(2+1)(2^2+1)(2^4+1)(2^8+1)(2^16+1)-2^12
    =(2^2-1)(2^2+1)(2^4+1)(2^8+1)(2^16+1)-2^12
    =(2^4-1)(2^4+1)(2^8+1)(2^16+1)-2^12
    =(2^8-1)(2^8+1)(2^16+1)-2^12
    =(2^16-1)(2^16+1)-2^12
    =(2^32-1)-2^12
    $$$$
    Mình nghĩ đề là 2^32 thì đúng hơn ạ ;-;

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

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