**Expanding brackets**. To **expand** a bracket **means** to multiply each term in the bracket by the expression outside the bracket. For example, in the expression , multiply both and 7 by 3, so: . **Expanding brackets** involves using the skills of simplifying algebra.

**Find out everything you need to know about it here. Then, why do we expand brackets in algebra?**

“**Expanding**” means removing the ( ) but **we** have to **do** it the right way! Whatever is inside the ( ) needs to be treated as a “package”. So when multiplying: multiply by everything inside the “package”.

Similarly, what do double brackets mean? **Double brackets** or [[]] in math refer to rounding off the value inside to its greatest integer less than or equal to the value.

**In this regard, how do you expand a polynomial function?**

To **expand a polynomial**, multiply its factors (often by using the distributive property) or perform the indicated operations. Then combine all like terms. **Expand** the following **expression**. Remembering the order of operations, we take care of exponents before multiplication.