Parentheses
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Definition of Parentheses
The symbols '(' and ')' are called parentheses and are generally used in grouping.
More About Parentheses
 The singular form of parentheses is known as parenthesis.
 Parentheses are used to denote modifications to normal order of operations.
 Parentheses are also called round brackets, curved brackets, oval brackets, or just brackets.
Examples of Parentheses

The value of the expression 5 × 8 + 4 is 40. But if we use the parentheses with the same expression by grouping (8 + 4), i.e. 5 × (8 + 4), the value of the expression will be 60 as the order of operation gets changed in this case.
Video Examples: Parenthesis Parenthesis
Solved Example on Parentheses
Ques: What is the value of the expression (12 + 4)  4?
Choices:
A. 8B. 0
C. 12
D. 16
Correct Answer: C
Solution:

Step 1: The operations within the parentheses should be performed first.
Step 2: (12 + 4)  4 [Original expression.]
Step 3: = 16  4
Step 4: = 12
Step 5: So, the value of the expression is 12.
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