Topic 5 Algebraic Reasoning Review

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What is the formula for the perimeter of a rectangle?

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The perimeter (P) of a rectangle is given by the formula P = 2(length + width).

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What does it mean to simplify an expression?

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To simplify an expression means to combine like terms and reduce it to its simplest form.

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How do you combine like terms in an expression?

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You add or subtract the coefficients of the terms that have the same variable.

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What is the process of distributing in algebra?

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Distributing involves multiplying each term inside a parenthesis by the term outside.

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What is a variable in algebra?

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A variable is a symbol (usually a letter) that represents an unknown value.

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What does it mean to subtract a negative number?

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Subtracting a negative number is the same as adding its positive counterpart.