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Level 3

Unit 3


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Factor
Numbers we can multiply together to get another number
Multiple
The result of multiplying a number by an integer (not by a fraction)
Prime number
A whole number with exactly two factors, 1 and itself
Prime factorization
writing a number as its prime number factors
GCF- Greatest common factor
The highest number that divides exactly into two or more numbers. When we find all the factors of two or more numbers, and some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
LCM - Lowest common multiple
The smallest positive number that is a multiple of two or more numbers.
Perfect Square
A number made by squaring (power of two) a whole number.
Perfect Cube
A number made by cubing (power of three) a whole number.
Binomial
A polynomial with two terms
Trinomial
A polynomial with three terms
Polynomial
An expression that can have constants (like 4), variables (like x or y) and exponents (like the 2 in y2), that can be combined using addition, subtraction, multiplication and division, but: • no division by a variable. • a variable's exponents can only be 0,1,2,3,... etc. • it can't have an infinite number of terms.
Variable
A symbol for a number we don't know yet. It is usually a letter like x or y.
Coefficient
A number used to multiply a variable
Perfect Square Trinomial
A trinomial of the form a^2 +2ab + b^2; it can be factored as (a + b) ^2
Difference of Squares
A binomial of the form a^2 - b^2; it can be factored as (a-b) (a+b)
Simplify
Changing something into it's most factored form; Simplest form
Expand
Multiply using distributive property
Root
is another number, which when multiplied by itself a given number of times, equals x