Arithmetic & Algebra

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Variable

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A symbol used to represent a number in expressions or equations.

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Coefficient

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A numerical or constant quantity placed before and multiplying the variable in an algebraic expression.

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Constant

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A fixed value that does not change.

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Expression

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A combination of numbers, variables, and operators (such as + and ×) without an equality sign.

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Equation

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A mathematical statement that asserts the equality of two expressions.

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Term

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A single mathematical expression. It can be a single number, a variable, or numbers and variables multiplied together.

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Polynomial

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An expression consisting of variables and coefficients, involving only the operations of addition, subtraction, multiplication, and non-negative integer exponents.

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Linear Equation

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An equation between two variables that gives a straight line when plotted on a graph.

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Factor

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A number or algebraic expression that divides another number or expression evenly.

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Product

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The result of multiplying two or more numbers or expressions.