alleryWhat is the main job of parentheses around a part of an expression?
ATreat it as one unit
BChange it into a fraction
CRemove it from the sum
DMake its sign negative
Answer & Solution
Correct answer: A. Treat it as one unit
1. Parentheses mark a sub-expression to be treated as one entity.
2. This is typically used for specifying the order of operations.
3. They do not change the sign or remove the term.
_Source: Wikipedia, Glossary of mathematical symbols, Brackets_
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