Log power rules - error in thinking

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I am trying manipulate an equation with logs, and I am 99% sure that there is something going wrong in my thinking.

I started of with seomthing like this:

$-\log Ae^x$

using log rule $\log AB = \log A + \log B$

(1) $-(\log A + \log e^x)=$

(2)$-\log A - \log e^x=$

(3)$-\log A + \log e^{-x}=$

(4)$-\log A e^{-x}$

which is clearly wrong, I can see that to, but I cannot see where my algebra is failing me, where am I missing the necessary brackets?

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The right answer is $(1)$.

Also, $(3)$ is valid.

I think your rule is wrong.

It should be $$\log{AB}=\log|A|+\log|B|,$$ otherwise $$\log4=\log((-2)(-2))=\log(-2)+\log(-2),$$ which is delirium.