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Add and Subtract Polynomials


Videos and solutions to help Algebra I students learn how to add and subtract polynomials.

New York State Common Core Math Module 1, Algebra I, Lesson 8

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Common Core For Algebra I

Student Outcomes

Students understand that the sum or difference of two polynomials produces another polynomial and relate polynomials to the system of integers; students add and subtract polynomials.

Lesson Summary

A monomial is a polynomial expression generated using only the multiplication operator (__×__). Thus, it does not contain + or – operators. Monomials are written with numerical factors multiplied together and variable or other symbols each occurring one time (using exponents to condense multiple instances of the same variable)

A polynomial is the sum (or difference) of monomials.

The degree of a monomial is the sum of the exponents of the variable symbols that appear in the monomial.

The degree of a polynomial is the degree of the monomial term with the highest degree.

Exit Ticket

1. Must the sum of three polynomials again be a polynomial?

2. Find (w2 - w +1) + (w3 - 2w2 +99)

(7x4 + 9x) - 2(x4 + 13)

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