How do I solve 5 log x equals negative 15

5 becomes the power of x

So, log x^5 = - 15

Using the logarithmic rule, and since base is not mentioned it should be 10,

Therefore:

x^5 = 10^ - 15

x^5 = 10^ - 3 (5) now the powers are equal so,

x = 10^-3

x = - 1000.

Correct me if I am wrong ...