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

Toán Lớp 7: (x+0,2)^5=1 giúp mik vssssssssssss

Toán Lớp 7: (x+0,2)^5=1
giúp mik vssssssssssss

Comments ( 2 )

  1. (x + 0,2)^5 = 1
    (x + 0,2)^5 = 1^5
    => x + 0,2 = 1
    => x = 1 – 0,2
    => x = 0,8
    Vậy x = 0,8
     

  2. $( x + 0,2 )^5$ = 1
    $\Rightarrow$ x + 0,2 = 1
    $\Rightarrow$ x = 1 – 0,2
    $\Rightarrow$ x = 0,8
      Vậy x = 0,8
     

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