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Variable definition. A variable is a quantity that may change within the context of a mathematical problem or experiment. Typically, we use a single letter to represent avariable. The letters , , and are common generic symbols used for variables.

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In Algebra a term is either a single number or variable, or numbers and variables multiplied together. Terms are separated by + or − signs. See: Variable.

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Commutative Property. The word "commutative" comes from "commute" or "move around", so the Commutative Property is the one that refers to moving stuff around.

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The power of a number says how many times to use the number in a multiplication. It is written as a small number to the right and above the base number.

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Math Term Definition. Perfect square. A perfect square is anumber that has an whole number square root. For example, 25 is a perfect square, because is 5, a whole number.

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Definition of Numerical Expression. The term "numerical" means "involving numbers" and the term "expression" means "phrase". A numerical expression is a mathematical phrase involving only numbers and one or more operational symbols.

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"Like terms" are terms whose variables (and their exponents such as the 2 in x²) are the same. In otherwords, terms that are "like" each other. Note: the coefficients (the numbers you multiply by, such as "5" in 5x) can be different.

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The identity property for addition tells us that zero added to any number is the number itself. Zero is called the "additive identity." The identity property for multiplication tells us that the number 1 multiplied times any number gives the number itself. The number 1 is called the "multiplicative identity."

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Term: Each expression is made up of terms. A termcan be a signed number, a variable, or a constant multiplied by a variable or variables. Factor: Something which is multiplied by something else. Afactor can be a number, variable, term, or a longerexpression.

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When an exponent is zero, as in 6⁰, the expression is always equal to 1. You canhave a variable to a given power, such as a³, which would mean a x a x a. You canalso have a number to a variable power, such as 2m, which would mean 2 multiplied by itself m times.

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Evaluate expressions. A variable is a letter, for example x, y or z, that represents an unspecified number. 6 + x = 12. To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12.

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An algebraic expression is a string of numbers,variables, mathematical operations, and possibly exponents. For example, 4x + 3 is a basic algebraic expression. ... If there were one, it would be an equation, or a number sentence that involves one or more variables. For example: 2x + 1 = 3.

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However, the distributive property does not work when the variables inside the parentheses are being multiplied or divided. Let's go through an example very carefully: By applying the distributive property, we can multiply each term inside the parentheses by 4. This is called "distributing."

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A defining variable is a symbol, such as x, used to describe any number. When a variable is used in an function, we know that it is not just one constant number, but that it can represent many numbers. Variables areinstrumental in understanding problems relating to graphing.

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Constant. more ... A fixed value. In Algebra, aconstant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number. Example: in "x + 5 = 9", 5 and 9 are constants.

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Commutative Property. The word "commutative" comes from "commute" or "move around", so the Commutative Property is the one that refers to moving stuff around. For addition, the rule is "a + b = b + a"; in numbers, this means 2 + 3 = 3 + 2. For multiplication, the rule is "ab = ba"; in numbers, this means 2×3 = 3×2.

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A number used to multiply a variable. Example: 6zmeans 6 times z, and "z" is a variable, so 6 is acoefficient. Variables with no number have acoefficient of 1. Example: x is really 1x. Sometimes a letter stands in for the number.

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In mathematics, a base or radix is the number of different digits or combination of digits and letters that a system of counting uses to represent numbers. For example, the most common base used today is the decimal system. Because "dec" means 10, it uses the 10 digits from 0 to 9.

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The associative property states that you can add or multiply regardless of how the numbers are grouped. By 'grouped' we mean 'how you use parenthesis'. In other words, if you are adding or multiplying it does not matter where you put the parenthesis. Add some parenthesis any where you like!

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An algebraic expression is a mathematical phrase that can contain ordinary numbers, variables (like x or y) and operators (like add,subtract,multiply, and divide). Here are some algebraic expressions: a + 1.

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he part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.