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

Toán Lớp 6: Bài 4 Tìm x , biết : g)2 mũ x = 16 h) (x + 1) mũ 3 = 27

Toán Lớp 6: Bài 4 Tìm x , biết :
g)2 mũ x = 16 h) (x + 1) mũ 3 = 27

Comments ( 2 )

  1. g)
    2^x = 16
    => 2^x = 2^4
    => x = 4
    $\text{ Vậy x = 4 }$
    h)
    ( x + 1 )^3 = 27
    => ( x + 1 )^3 = 3^3
    => x + 1 = 3
    => x = 3 – 1
    => x = 2
    $\text{ Vậy x = 2 }$
     

  2. g) 2^{x} = 16
    => 2^{x} = 2^{4}
    => x = 4
    h) (x + 1)^{3} = 27
    => (x+1)^{3} = 3^{3}
    => x + 1 = 3
    => x = 3 – 1
    => x = 2

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

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