Question

giúp mik giải bài này với : 4^x-1=64

Answer 1

4^x-1 = 64

4^x-1 = 4³

x - 1= 3

x     = 3 + 1

x     = 4

k mk nha. Cảm ơn bn nhé

Answer 2

    4^x-1=64

<=> 4^3= 64

<=>   x-1=3

<=>  x     = 3+21

<=>   x    = 4

Answer 3

4x-1=64

4x   =64+1

4x   =65

 x    =65:4

  x   =16,25

Answer 4

4^x-1 = 64

=> 4^x-1 = 4³

=> x - 1 = 3

=> x = 3 + 1

=> x = 4

Vậy x = 4

Học tốt #

Answer 5

\(4^{x-1}=64\)

Mà  \(64=4^3\)

\(\Rightarrow4^{x-1}=4^3\)

\(x-1=3\)

\(\Rightarrow x=4\)

Answer 6

\(4^{x-1}=64\)

= \(4^{x-1}=4^3\)

= \(x-1=3\)

\(x=3+1\)

\(x=4\)

Answer 7

\(=2\)

Answer 8

\(4^{x-1}=64\)

\(\Leftrightarrow4^{x-1}=4^3\)

\(\Leftrightarrow x-1=3\)

\(\Leftrightarrow x=3+1\)

\(\Leftrightarrow x=4\)

Answer 9

4^x-1 = 64 = 4³

=> x - 1 = 3

x = 4

Answer 10

4^{x - 1} = 64

4^{x - 1} = 4³

      x = 3 + 1

      x = 4

Answer 11

\(4^{x-1}=64\)

\(4^{x-1}=6^3\)

\(\Rightarrow x-1=3\)

\(\Rightarrow x=3+1\)

\(\Rightarrow x=4\)