Discovery Education
Discovery Education: Web Math: Add and Subtract Polynomials
Perform and see examples of adding and subtracting polynomials on the WebMath "Solver."
Khan Academy
Khan Academy: Algebra: Arithmetic With Polynomials and Rational Expressions
Understand that polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction, and multiplication i.e. one can add, subtract, and multiply polynomials.
Khan Academy
Khan Academy: Add Polynomials (Intro)
Students practice adding polynomials with these exercises. They receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Adding Polynomials
Get independent practice working with adding polynomials. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Subtract Polynomials
Get independent practice working with subtracting polynomials. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Khan Academy
Khan Academy: Add & Subtract Polynomials: Two Variables (Intro)
Example: Subtract (x^2+2xy-y) and (3x+5xy+2y^2).
Texas Instruments
Texas Instruments: Polynomial Addition, Subtraction
This StudyCard stack teaches that, when linear functions are added, the slope of the sum is equal to the sum of the slopes, likewise for y-intercepts. Includes quadratic and up polynomials.
Integrated Publishing
Integrated Publishing: Operations With Polynomials
Use the examples and explanations on adding, subtracting, and multiplying polynomials to review the operations with polynomials.
Purple Math
Purplemath: Adding Polynomials
Demonstrates how to add polynomials using both the horizontal and vertical formats.
Help Algebra
Help algebra.com: Addition and Subtraction of Polynomials
By collecting like terms, the process of adding and subtracting polynomials is demonstrated. Two methods are shown.
Help Algebra
Algebra Help: Operations With Polynomials
This article gives an overview for adding, subtracting, multiplying, and dividing polynomials. Examples are given, but more importantly, they are accompanied with explanations of why the process worked.
McGraw Hill
Glencoe Mathematics: Online Study Tools: Adding Polynomials
This site gives a short interactive quiz which allows students to self-assess their understanding of the concept of adding polynomials.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
CK-12 Foundation
Ck 12: Algebra: Applications of Rational Expressions
[Free Registration/Login may be required to access all resource tools.] In this lesson students solve applications that involve adding and subtracting rational expressions. Students watch a video tutorial, explore guided notes and...
CK-12 Foundation
Ck 12: Algebra: Applications of Rational Expressions
[Free Registration/Login may be required to access all resource tools.] In this lesson students solve applications that involve adding and subtracting rational expressions. Students watch a video tutorial, explore guided notes and...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Add and Subtract Polynomials
Find a quick, concise explanation of how to add and subtract polynomials. Step by step example is included to help you understand how to use the distributive property to find the sum or difference.
Texas Instruments
Texas Instruments: Introduction to Some Algebra Concelpts Using Cas
This series of activities provides an introduction to some Algebra concelpts using CAS. The activities start with Algebra tiles and CAS. Patterning is modelled for the students so that they can construct the knowledge rather than be...
Interactive Mathematics
Interactive Mathematics: Factoring and Fractions
Polynomials are the focus of these lessons, concentrating on factoring and special products to work with rational expressions. Interactive tools of Live Math and Scientific Notebook are used to provide animated solutions to the examples....