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

Toán Lớp 6: (x-1) mũ 2= 1 giúp mk với nha

Toán Lớp 6: (x-1) mũ 2= 1
giúp mk với nha

Comments ( 2 )

  1. $(x – 1)^{2} = 1$
    $(x – 1)^{2} = 1^{2}$
    $→ x – 1 = 1$
    $x = 1 + 1$
    $x = 2.$

  2. (x – 1)^{2} = 1
    =>(x – 1)^{2} = 1^{2}
    =>x – 1 = 1
    =>x = 1 + 1 = 2
    Vậy x = 2
     

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