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

Toán Lớp 7: (2^x+1)-16=0 tìm x

Toán Lớp 7: (2^x+1)-16=0 tìm x

Comments ( 2 )

  1. 2^(x+1)-16=0
    ⇒2^(x+1)=16
    ⇒2^(x+1)=2^4
    ⇒x+1=4
    ⇒x=3
    Vậy x=3.
     

  2. (2^{x+1} ) – 16 =0
    -> 2^{x+1} = 16
    -> 2^{x+1} =2^4
    -> x +1 =4
    -> x = 3
    Vậy x =3

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

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