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

Toán Lớp 6: (3x-4)^3=7+1^2019 giúp mk với, mk cần câu trả lời gấp

Toán Lớp 6: (3x-4)^3=7+1^2019 giúp mk với, mk cần câu trả lời gấp

Comments ( 2 )

  1. (3x-4)^3=7+1^2019
    ⇔(3x-4)^3=7+1
    ⇔(3x-4)^3=8=2^3
    ⇔3x-4=2
    ⇔3x=6
    ⇔x=2
    Vậy x=2
     

  2. (3x-4)^3=7+1^2019
    ⇒(3x-4)^3=7+1
    ⇒(3x-4)^3=8
    ⇒(3x-4)^3=2^3
    ⇒3x-4=2
    ⇒3x=6
    ⇒x=2

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