More Algebra 
EnchantedLearning.com Algebra Glossary Terms Used in Algebra 
absolute value  The absolute value of a number is the distance from the origin on a number line. For example, the absolute value of 2 is 2 (written
algebra  Algebra is the study of generalized arithmetic. In algebra, unknown numbers can be represented by letters in order to solve equations. For example,
coefficient  In an expression or equation, a coefficient is a number in front of a variable. For example, in the expression 8x, the coefficient is 8 (and the variable is x).
degree of a polynomial  The degree of a term within a polynomial is the sum of the exponents of variables that occur in that term (if there is no exponent written on a variable, such as in 3x, the exponent is one). The degree of a polynomial is the greatest degree of any term in the polynomial (for instance, for the polynomial 4x^{2} + 7xyz, the degree is 3 because of the last term).
equation  An equation is a mathematical statement that contains an equal sign, like ax + b = c.
exponent  An exponent is a power that a number is raised to. For example, in 2^{3}, the exponent is 3.
expression  An algebraic expression consists of one or more variables, constants, and operations, like 3x4. Each part of an expression that is added or subtracted is called a term For example, the expression 4x^{2}2x+7 has three terms.
factor  The factor of a number is a number that divides that number exactly. For example, the factors of 6 are 1, 2, 3 and 6.
formula  A formula shows a mathematical relationship between expressions.
fraction  A fraction is a part of a whole, like a half, a third, a quarter, etc. For example, half of an apple is a fraction of an apple. The top number in a fraction is called the numerator; the bottom number in a fraction is called the denominator.
inequality  An inequality is a mathematical expression that contains an inequality symbol. The inequality symbols are :
< less than (1<2)
> greater than (2>1)
≤ less than or equal to
≥ greater than or equal to
≠ not equal to (1≠2).
integer  The integers are the numbers ..., 3, 2, 1, 0, 1, 2, ....
inverse (addition)  The inverse property of addition states that for every number a, a + (a) = 0 (zero).
inverse (multiplication)  The inverse property of multiplication states that for every nonzero number a, a times (1/a) = 1.
matrix 
n^{th} 
operation  An operation is a rule for taking one or two numbers as inputs and producing a number as an output. Some arithmetic operations are multiplication, division, addition, and subtraction.
polynomial  A polynomial is a sum or difference of terms; each term is:
prime number  A prime number is a positive number that has exactly two factors, 1 and itself. Alternatively, you can think of a prime number as a number greater than one that is not the product of smaller numbers. For example, 13 is a prime number because it can only be divided evenly by 1 and 13. For another example, 14 is not a prime number because it can be divided evenly by 1, 2, 7, and 14. The number one is not a prime number because it has only one factor, 1 itself.
quadratic equation  A quadratic equation is an equation that has a seconddegree term and no higher terms. A seconddegree term is a variable raised to the second power, like x^{2}, or the product of exactly two variables, like x and y.
When you graph a quadratic equation in one variable, like y = ax^{2} + bx + c, you get a parabola, and the solutions to the quadratic equation represent the points where the parabola crosses the xaxis.
quadratic formula  The quadratic formula is a formula that gives you a solution to the quadratic equation ax^{2} + bx + c = 0. The quadratic formula is obtained by solving the general quadratic equation.
radical  A radical is a symbol √ that is used to indicate the square root or n^{th} root of a number.
root  An n^{th} root of a number is a number that, when multiplied by itself n times, results in that number. For example, the number 4 is a square root of 16 because 4 x 4 equals 16. The number 2 is a cube root of 8 because 2 x 2 x 2 equals 8.
solve  When you solve an equation or a problem, you find solutions for it.
square root  The square roots of a number n are the numbers s such that s^{2}=n. For example, the square roots of 4 are 2 and 2; the square roots of 9 are 3 and 3.
symbol  A symbol is a mark or sign that stands for something else. For example, the symbol ÷ means divide.
system of equations  A system of equations is two or more independent equations that are solved together. For example, the system of equations: x + y = 3 and x  y = 1 has a solution of x=2 and y=1.
terms  In an expression or equation, terms are numbers, variables, or numbers with variables. For example, the expression 3x has one term, the expression 4x^{2} + 7 has two terms.
variable  A variable is an unknown or placeholder in an algebraic expression. For example, in the expression 2x+y, x and y are variables.
+,   Math 
x, ÷ 
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Counting  Addition  Subtraction  Multiplication  Division 
Number Line  Fractions  Decimals  Measurement  Rounding  Graphs 
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