Basically? They're the same thing.
...wait, you expected a longer tip?
Yeah. So you'll find that American people use this "(" and ")" and we call them parentheses (plural). As for the English? They call them brackets. So why is this important? Sometimes, if you use parentheses/brackets, in your story or poem, you'll get these random comments talking about your parentheses/brackets that can be slightly confusing, depending on what country you're from. So just keep that in mind.
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