Question

Решите уравнение

5^-3x= 1/125

Answer 1

5^(-3x) =1/5^3
5^(-3x)=5^(-3)
-3x=-3
x=1

Answer 2

5 ^ - 3х = 1/125
5 ^ - 3х = 5 ^ - 3
- 3х = - 3
х = 1