Expressions Review 24-25

Front

What is an algebraic expression?

Back

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

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and perform any operations to make the expression as concise as possible.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac. It allows you to multiply a single term by each term inside a parentheses.

Front

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.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor in a term of an algebraic expression. For example, in 4x, 4 is the coefficient.

Front

What is a variable in an algebraic expression?

Back

A variable is a symbol, often a letter, that represents an unknown value in an expression or equation.

Front

What is the perimeter of a rectangle?

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

Front

How do you write an expression for a word problem?

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To write an expression for a word problem, identify the quantities involved and the operations needed to relate them.

Front

What does 'product' mean in mathematics?

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The product is the result of multiplying two or more numbers or expressions together.

Front

What does 'subtracted from' indicate in an expression?

Back

'Subtracted from' indicates that the first quantity is being decreased by the second quantity. For example, '5 subtracted from x' is written as x - 5.