About the Simplify Expression Calculator
Expand and simplify polynomial expressions like (x + 2)³ − x(x − 1), collecting like terms into standard form.
Also known as: simplify algebra, expand brackets, combine like terms, expression simplifier, expand expression.
How to use this calculator
- Enter expression in x.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
Distribute, expand powers, then combine like terms
Worked example
Using the values pre-filled in the calculator above:
- Expression in x: (x + 2)^3 - x(x - 1)
the calculator returns:
- Simplified: x^3 + 5x^2 + 13x + 8
- Degree: 3