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

Toán Lớp 6: 2^x+2^x+1+2^x+2+2^x+3+2^x+4=126.mn nhanh giúp ạ

Toán Lớp 6: 2^x+2^x+1+2^x+2+2^x+3+2^x+4=126.mn nhanh giúp ạ

Comments ( 2 )

  1. 2^x+2^x+1+2^x+2+2^x+3+2^x+4=126
    (2^x+2^x+2^x+2^x) + 10 = 126
    8^x = 126 – 10
    8^x = 116

  2. Giải đáp:
    x=45361/10000
    Lời giải và giải thích chi tiết:
    2^x +2^x+1+2^x+2+2^x+3+2^x+4=126
    2^x +2^x+1+2^x+2+2^x+3+2^x+4= 5(2^x+2)
    5(2^x+2)=2.3^2.7
    $2^{x+2}$ + 2^x – 116 = 0
    = 45361/10000

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