👉 A braced expression is a type of mathematical expression that uses parentheses to indicate grouping. The term "braced" comes from Latin and means to close or bind. When used in mathematics, it refers to the use of parentheses to group terms together where they are multiplied or added together.
For example:
```
(3 + 2)
(4 - 1)
```
This expression is written in braced notation as follows:
```
3
(4-1)+2
``