Question

Tìm x biết :

\(5^{x+1}=125\)

Answer 1

=>x+1=3

hay x=2

Answer 2

`5^(x+1) = 125`

`=> 5^(x+1) = 5^3`

`=> x + 1    = 3`

`=>  x         = 3 - 1`

`=>   x        = 2`

Answer 3

5^x+1=125=5³

x+1=3

x=2

Answer 4

`=> 5^(2x+1) = 5^3`

`=> 2x+1 = 3`

`=> x = 1`.