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

Toán Lớp 8: Rút gọn biểu thức: P = 12( 5 ² + 1 )( $5^{4}$ + 1 ) ( $5^{8}$ + 1 ) ( $5^{8}$ +1 ) ( $5^{16}$ +! )

Toán Lớp 8: Rút gọn biểu thức:
P = 12( 5 ² + 1 )( $5^{4}$ + 1 ) ( $5^{8}$ + 1 ) ( $5^{8}$ +1 ) ( $5^{16}$ +! )

Comments ( 1 )

  1. Giải đáp:
     
    Lời giải và giải thích chi tiết:
    P=12(5^2+1)(5^4+1)(5^8+1)(5^8+1)(5^16+1)
    2P=24(5^2+1)(5^4+1)(5^8+1)(5^8+1)(5^16+1)
    2P=(5^2-1)(5^2+1)(5^4+1)(5^8+1)(5^8+1)(5^16+1)
    2P=(5^4-1)(5^4+1)(5^8+1)(5^8+1)(5^16+1)
    2P=(5^8-1)(5^8+1)(5^8+1)(5^16+1)
    2P=(5^16-1)(5^16+1)(5^8+1)
    2P=(5^32-1)(5^8+1)
    2P=5^32(5^8+1)-(5^8+1)
    2P=5^40+5^32-5^8-1
    P=(5^40+5^32-5^8-1)/2

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

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