Algebraic Expressions

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What is an algebraic expression?

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An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 3x + 5 is an algebraic expression.

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What is a constant in an algebraic expression?

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A constant is a fixed value that does not change. In the expression 2x + 3, the number 3 is a constant.

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What is a variable in an algebraic expression?

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A variable is a symbol, usually a letter, that represents an unknown value. In the expression 4y + 2, 'y' is the variable.

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What is a coefficient in an algebraic expression?

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A coefficient is a numerical factor that multiplies a variable. In the expression 5x, the number 5 is the coefficient.

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Translate the expression: 'Three times a number increased by four'.

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3n + 4

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Translate the expression: 'The sum of a number and seven'.

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n + 7

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What does it mean to simplify an algebraic expression?

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

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What is the difference between an equation and an expression?

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An equation states that two expressions are equal, while an expression is a combination of numbers, variables, and operations without an equality sign.

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Translate the expression: 'Five less than twice a number'.

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2n - 5

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What is the term in an algebraic expression?

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A term is a single mathematical expression that can be a number, a variable, or a combination of both multiplied together. For example, in 3x + 4y - 5, there are three terms: 3x, 4y, and -5.