1.7 Addition and Subtraction of Algebraic Expressions
Algebraic Expressions • Terms • Factors • Polynomials • Similar Terms • Simplifying • Symbols of Grouping
Because we use letters to represent numbers, we can see that all operations that can be used on numbers can also be used on literal numbers. In this section, we discuss the methods for adding and subtracting literal numbers.
Addition, subtraction, multiplication, division, and taking powers or roots are known as algebraic operations. Any combination of numbers and literal symbols that results from algebraic operations is known as an algebraic expression.
When an algebraic expression consists of several parts connected by plus signs and minus signs, each part (along with its sign) is ...
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