# Lesson 1 - Lesson 1 Factors any numbers or symbols that...

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Lesson 1 Factors: - any numbers or symbols that form a product Commutative and Associative Properties: - order and grouping do not matter when adding or multiplying Identities: - values that produce no change; zero is the additive identity; one is the multiplicative identity You can ALWAYS add zero (important when completing the square); you can always multiply by one (important when working with fractional expressions) Distributive property (covered in section 1.3) Absolute value: - the distance between the number and the origin on a number line; denoted symbolically by | | , where is a real number; since | | represents distance, | | must be nonnegative; | | or | | represents the distance between two points on a number line; the order does not matter Order of operation: - PEMDAS (parentheses, exponents, multiply, divide, add, subtract)
Exponential Notation: Where is the base and is the exponent or power When the exponent is a positive integer, exponential notation is a concise way of writing the product of repeated factors, where