Brackets outside of a number typically indicate that the number is negative or refers to a loss. For example, in financial statements, a figure presented as (500) would signify a loss of 500 units of currency. In mathematical contexts, brackets can also denote a specific grouping but are most commonly used in accounting or data presentation to highlight negative values.
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It means that the term inside the brackets needs to be multiplied by the previous term outside the bracket..
a(b + c) = ab + ac =========just distribute the number to all additive terms in the brackets/parentheses
Use the same rules inside brackets as you would outside of brackets. There is no difference between the two.
The text in the brackets must be a question.
Brackets are basically the same as parentheses. If they are inside of parentheses, then you simplify that term before anything else. If they are outside of parentheses, then you simplify the terms in the parentheses first and then the term within the brackets.