Question

1- Resolva a equação: 2 3 4 0

Answer 1

Resposta:

1) 3^(x + 1) = 27

  3^(x + 1) = 3^3

    x + 1 = 3

    x = 3 - 1

    x = 2

2) 2^2x = 1/256

2^2x = 1/2^8

2^2x 2^-8

2x =-8

x = -8/2

x = -4

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3) 5^(2x -1) = 125

   5^(2x - 1) = 5^3

   2x - 1 = 3

   2x = 3 + 1

 

   2x = 4

   x = 4/2

   x = 2

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4) 2^(3x - 1) = 128

   2^(3x - 1) = 2^7

   3x - 1 = 7

   3x = 7 + 1

   3x = 8

    x = 8/3

5) 4^(3x - 1) = 16

   4^(3x -1) = 4^2

     3x - 1 = 2

     3x = 2 + 1

     3x = 3

      x = 3/3

       x = 1

Explicação passo-a-passo: