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16 terms

Algebra 1 definitions

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arithmetic operations
addition, subtraction, multiplication, division
expression
collections of numbers, operation signs, and indusion symbols
evaluating
finding the number for which the expressions stands
variable
a letter representing a number
terms
numbers that are added or subtracted from each other.
additive inverses
two numbers that their sum is zero
multiplicative inverses
two numbers that product equals 1
division
multiplying by its reciprocal
commute
an expression meaning to interchange their positions
associate
to associate two of the numbers in an expression means to group them with parenthesis so that the operation between them is done first
property
the property of a mathematical symbol is a fact that is true concerning the system
axiom
a property that forms the basis of a mathematical system. assumed without proof
distributive axiom
x(y+z)=xy+xz
like terms
two terms in an expressions are like terms if they have the same variables raised to the same power
numerical coefficient
the numerical coefficient of a term is the constant that is multiplied by the variables
common factor
in an expression c is a common factor if c is a factor of each term