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

Toán Lớp 6: B=(3^5+3^7+3^9+3^11) : ( 3^4+3^6+3^8+3^10)

Home/ Toán Lớp 6: B=(3^5+3^7+3^9+3^11) : ( 3^4+3^6+3^8+3^10)

Toán Lớp 6: B=(3^5+3^7+3^9+3^11) : ( 3^4+3^6+3^8+3^10)

Tháng Tư 8, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: B=(3^5+3^7+3^9+3^11) : ( 3^4+3^6+3^8+3^10)

Comments ( 2 )

  1. landinhngoc97
    landinhngoc97
    8 Tháng Tư, 2022 at 2:48 sáng
    Reply
    B = ( 3^5 + 3^7 + 3^9 + 3^11 ) : ( 3^4 + 3^6 + 3^8 + 3^10 )
    = ( 3^5 + 3^7 + 3^9 + 3^11 )/( 3^4 + 3^6 + 3^8 + 3^10 )
    = ( 3^5( 1 + 3^2 + 3^4 + 3^6 ))/( 3^4( 1 + 3^2 + 3^4 + 3^6 ))
    = ( 3^5 )/( 3^4 )
    = 3
    => B = 3
    @Tina

  2. kimlien
    kimlien
    8 Tháng Tư, 2022 at 2:47 sáng
    Reply
    B=(3^5+3^7+3^9+3^11) : ( 3^4+3^6+3^8+3^10)
    = (3^5+3^7+3^9+3^11)/( 3^4+3^6+3^8+3^10)
    = (3^5 (1+3^2 +3^4 +3^6))/(3^4 (1+3^2 +3^4 +3^6))
    = (3^5)/(3^4)
    = 3
    Phương pháp: đặt nhân tử chung

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

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