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13 terms

1.1, 1.2

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constant
number that does not change
variable
letter that represents some number
algebraic expression
contains at least on evariable
monomial
expression that is a number, variable, or product of one or more variables
polynomial
a monomial or sum/difference of monomials
like terms
have the EXACT SAME variable parts
order of operations
PEMDAS
real numbers
any number tha can be found on a numeber line
rational numbers
can be represented as a quotient of 2 integers or can be written as a terminating or repeating decimal
integers
0, +1, +2, +3,...
whole numbers
0, 1, 2, 3,...
natural numbers
1, 2, 3,...
irrational numbers
any numbers tha aren't real