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Distributive property - the property stating that the product of a factor times a given quantity containing a sum or difference is equal to the sum of the products of that factor times each addend from within the quantity.
Equivalent expressions - expressions that have the same value for all values of the variables.
Expression - a mathematical phrase represented by numbers and/or variables separated by operational symbols.
Factor - a number that evenly divides into another number.
Greatest common factor (GCF) - the greatest whole number that evenly divides into (is a factor of) two or more whole numbers.