Examples, solutions, videos and lessons to help High School students understand that polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction, and multiplication; add, subtract, and multiply polynomials.

### Suggested Learning Targets

Common Core: HSA-APR.A.1

Adding and Subtracting Polynomials

Basic rules for adding and subtracting polynomials.
Adding and Subtracting Polynomials.
Addition and Subtraction of Polynomials.

Adding & Subtracting Polynomials.
Adding and Subtracting Polynomials.
Adding and Subtracting Polynomials.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

- Understand the definition of a polynomial.
- Understand the concepts of combining like terms and closure.
- Add, subtract, and multiply polynomials and understand how closure applies under these operations.

Common Core: HSA-APR.A.1

Adding and Subtracting Polynomials

Basic rules for adding and subtracting polynomials.

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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