Question

5 mũ x-2=125

Answer 1

5^x - 2 = 125

5^x : 5^2 = 125

5^x = 125.25

5^x = 5^5

=> x = 5

Chúc bn học tốt!

Answer 2

5^x - 2 = 125

5^x : 5^2 = 125

5^x = 125.25

5^x = 5^5

=> x = 5

Answer 3

`5^(x-2) = 125`

`=> 5^(x-2) = 5^3`

`=> x-2 = 3`

`=> x =5`

Vậy `x=5`