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)
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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
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 Spring '09
 Addition, Exponents, Factors, nonnegative, Commutative and Associative Properties

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