Deans SOL Review - 80% B4 Lunch 5/22

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7

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-8

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13

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7x-4

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3

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What is the definition of a variable in mathematics?

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A symbol used to represent an unknown value.

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What is the order of operations in mathematics?

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Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - PEMDAS.

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What does it mean to simplify an expression?

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To reduce it to its simplest form by combining like terms and performing operations.

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What is a polynomial?

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An expression consisting of variables raised to non-negative integer powers and coefficients.

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What is the difference between an expression and an equation?

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An expression does not have an equality sign, while an equation does.