Question

Gía trị x thỏa mãn: 3^2x-1 = 3⁶ : 3³ là x 

Answer 1

\(3^{2x-1}=3^6:3^3\)

\(3^{2x-1}=3^{6-3}\)

\(3^{2x-1}=3^3\)

\(\Rightarrow2x-1=3\)

\(\Rightarrow2x=4\)

\(\Rightarrow x=2\)

vậy \(x=2\)

Answer 2

=> 3^2x-1 = 3^3 = 3^3

=> 2x-1 = 3

=> 2x = 3+1 = 4

=> x = 4:2 = 2

k mk nha

Answer 3

3^{2x - 1} = 3⁶ : 3³

3^{2x - 1} = 3³

=> 2x - 1 = 3

    2x = 3 + 1

    2x = 4 

      x = 4 : 2

      x = 2

Vậy x = 2

Answer 4

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