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

Toán Lớp 6: 35 – 288 : ( x – 3 )^2 = 27 . Tìm x giúp em với

Toán Lớp 6: 35 – 288 : ( x – 3 )^2 = 27 . Tìm x
giúp em với

Comments ( 2 )

  1. 35 – 288 : (x – 3)^2 = 27
    288 : (x – 3)^2 = 35 – 27
    288 : (x – 3)^2 = 8
    (x – 3)^2 = 288 : 8
    (x – 3)^2 = 36
    (x – 3)^2 = 6^2
    => x – 3 = 6
    => x = 6 + 3
    => x = 9

  2. 35-288:(x-3)^2=27
    288:(x-3)^2=35-27
    288:(x-3)^2=8
    (x-3)^2=288:8
    (x-3)^2=36
    (x-3)^2=6^2
    =>x-3=6
    x=6+3
    x=9
    Vậy x=9

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

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