Question

mình cần gấp 4³.2^x+1=1

Answer 1

\(4^3\cdot2^{x+1}=1\)

\(\Leftrightarrow2^{x+1}=\dfrac{1}{64}\)

\(\Leftrightarrow x+1=-6\)

hay x=-7

Answer 2

2⁶ . 2^x+1 = 1

2^{6(x + 1)}  = 2⁰

6(x+1)=0

x+1=-6

x=-7

 

 

Answer 3

`4^3 . 2^(x+1) = 1`

`<=> 64 . 2^(x+1) =1`

`<=> 2^(x+1) = 1:64`

`<=> 2^(x+1) = 1/64`

`<=>2^(x+1) = (1/2)^6`

`<=>  x+1 = 6`

`<=> x = 6-1`

`<=>x=5`