Question

How do you simplify `log10^9 + 10^log5`?

Answer 1

I found `14` (supposing base `10` for the logs).

Explanation:

Supposing the base of the logs being `10` we see that:

`log10^9=9`

and:

`10^(log5)=5`

both derive from the definition of log (specifically in base `10`):
`log_10x=a ->x=10^a`

So basically you expression becomes:
`log10^9+10^(log5)=9+5=14`

If the base is not `10` then it depends...