Question

Answer 1

`2^x .4=128`

`2^x=128:4`

`2^x=2^7 :2^2`

`2^x=2^[7-2]=2^5`

`x=5`

Answer 2

2^x.4=128

2^x=32

2^x=2⁵

x=5

Answer 3

`2^x .4 = 128`

`=>2^x = 128/4 = 32`

`=> 2^x = 2^5`

`=>x=5`

Answer 4

\(2^x.4=128.\)

\(2^x=128:4.\)

\(2^x=32.\)

\(2^x=2^5.\)

Vậy \(\Rightarrow x=5.\)

Answer 5

`-> 2^x = 128/4`

`-> 2^x = 32`

`-> 2^x = 2^5`

`-> x = 5`