Question

1.4:tìm x

h)\(2^{6x-1}:4=8^3\)

Answer 1

\(\Leftrightarrow2^{6x-1-2}=2^9\)

=>6x-3=9

=>6x=12

=>x=2

Answer 2

`@` `\text {Answer}`

`\downarrow`

`h)`

\(2^{6x-1}\div4=8^3\)

`=>`\(2^{6x-1}=\left(2^3\right)^3\cdot4\)

`=>`\(2^{6x-1}=2^9\cdot2^2\)

`=>`\(2^{6x-1}=2^{11}\)

`=> 6x - 1 = 11`

`=> 6x = 11 +1`

`=> 6x = 12`

`=> x = 12 \div 6`

`=> x = 2`

Vậy, `x = 2.`