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ANSWER
SIMPLIFYING POLYNOMIALS
In section 3 of chapter 1 there are several very important definitions, which we have used many times. Since these definitions take on new importance in this chapter, we will repeat them.
When an algebraic expression is composed of parts connected by + or - signs, these parts, along with their signs, are called the terms of the expression.
a + b has two terms.
2x + 5y - 3 has three terms.
In a + b the terms are a and b. In 2x + 5y - 3 the terms are 2x, 5y, and -3.
When an algebraic expression is composed of parts to be multiplied, these parts are called the factors of the expression.
ab has factors, a and b.
It is very important to be able to distinguish between terms and factors. Rules that apply to terms will not, in general, apply to factors. When naming terms or factors, it is necessary to regard the entire expression.
From now on through all algebra you will be using the words term and factor. Make sure you understand the definitions.
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