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

Toán Lớp 6: chứng mình rằng: 4^n+3+4^n+2-4^n+1-4^n chia hết cho 300

Toán Lớp 6: chứng mình rằng: 4^n+3+4^n+2-4^n+1-4^n chia hết cho 300

Comments ( 2 )

  1. Mình gửi bạn ạ
    Xin hay nhất 
    nguyenquanghuy24#

    toan-lop-6-chung-minh-rang-4-n-3-4-n-2-4-n-1-4-n-chia-het-cho-300

  2. $\text{$4^{n+3}$ +$4^{n+2}$- $4^{n+1}$ $4^{n}$}$
    $\text{=$4^{3}$. $4^{n}$ +$4^{2}$. $4^{n}$-4. $4^{n}$- $4^{n}$}$ 
    $\text{=64.$4^{n}$+ 16. $4^{n}$-4. $4^{n}$- 1.$4^{n}$ }$
    $\text{=75.4.$4^{n-1}$ }$
    $\text{=300.$4^{n-1}$ $\vdots$ 300}$
    Lời giải và giải thích chi tiết:
     

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

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