Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables (like x or y), and operations (like addition, subtraction, multiplication, and division).

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What does it mean to simplify an expression?

Back

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

Front

What is the perimeter of a shape?

Back

The perimeter is the total distance around a shape, calculated by adding the lengths of all its sides.

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What is the Distributive Property?

Back

The Distributive Property states that a(b + c) = ab + ac, meaning you can distribute a number across a sum.

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How do you combine like terms?

Back

You combine like terms by adding or subtracting the coefficients of terms that have the same variable raised to the same power.

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What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable in an algebraic expression.

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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 in an expression or equation.

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What does it mean to evaluate an expression?

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To evaluate an expression means to calculate its value by substituting numbers for the variables.

Front

What is the result of simplifying -6k + 7k?

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The result is k.

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What is the result of simplifying 12r + 8 - 12?

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The result is 12r - 4.