Parentheses and brackets are what are known as grouping symbol. They keep two or more quantities separate from the rest of the problem. For example, n-2 180. Without parentheses the problem is wrong. But add in parentheses and the problem looks like this (n-2) times 180.
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Yes, the word 'brackets' is both a noun (bracket, brackets) and a verb (bracket, brackets, bracketing, bracketed).Examples:The brackets holding the shelf are loose. (noun)The author brackets the words that are not a part of the direct quote. (verb)I use brackets at the end of the sentence to designate the part of speech. (noun)
the brackets mean "do this first". for example, in: x(4+2) you would add 4+2 before multiplying it By x. you can also add brackets into brackets which do the same thing. it is not compulsory, but you may change the brackets for how far in they are. i.e {[(1)]}.
'cuz
not i.e.
The brackets that hold the bikes has broken and the bikes have fallen over each other.