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# 9.2: Addition and Subtraction of Polynomials

Difficulty Level: Basic Created by: CK-12
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Practice Addition and Subtraction of Polynomials

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Estimated11 minsto complete
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Estimated11 minsto complete
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### Vocabulary Language: English Spanish

constant

In a polynomial, the number appearing all by itself without a variable is called the constant.

like Terms

Like terms are terms in the polynomial that have the same variable(s) with the same exponents, but they can have different coefficients.

Polynomial

A polynomial is an expression with at least one algebraic term, but which does not indicate division by a variable or contain variables with fractional exponents.

distributive property

The distributive property states that the product of an expression and a sum is equal to the sum of the products of the expression and each term in the sum. For example, $a(b + c) = ab + ac$.

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