Question

5powerx - 5power x-1 =125

Answer 1

Answer:

Step-by-step explanation:

5^x - 5^x-1 =125

$5^{x/x-1}$=125....(a^m-a^n= a^m/n)

$5^{x/x-1}$=5^3

therefore,

{x/x-1}[/tex]=3

x=3(x-1)

x=3x-3

3x-x=3

2x=3

therefore

x=3/2

hope it helps...