Question

How do you solve `x=log_15 225`?

Answer 1

`x=2`

Explanation:

It is always important to remember that logarithms undo exponents and vice versa.

For example: if `log_ab=c`, then `a^c=b`.

Therefore, if `x=log_15 225`, then `15^x=225`.

We can rewrite this as `15^x=15^2`.

Thus, `x=2`.