Lame Adwords bracket Question
In Adwords, I keep hearing everybody say negative keywords are so important to filter out things like "free" etc.
but if you are doing a targeted group (like everyone says) using bracket option is the way to go and there's no reason for negative keywords, right?
I thought perry marshall say this about the [] bracket narrowing, but then i heard him talking about negative keywords and i got confused if i was wrong in not using the negative phrases
Am i making sense?
Thanks,
Joel