Expressions Review

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What does it mean to simplify an expression?

Back

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

Front

What are like terms?

Back

Like terms are terms that have the same variable raised to the same power. For example, 3x and 5x are like terms.

Front

What is the coefficient in an expression?

Back

A coefficient is a numerical factor in a term. For example, in 4x, 4 is the coefficient.

Front

What is the constant in an expression?

Back

A constant is a term that does not contain any variables. For example, in the expression 3x + 5, 5 is the constant.

Front

How do you combine like terms?

Back

To combine like terms, add or subtract their coefficients while keeping the variable part the same. For example, 3x + 2x = 5x.

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 parenthesis.

Front

What does it mean to factor an expression?

Back

Factoring an expression means to write it as a product of its factors. For example, factoring 6x as 2 * 3 * x.

Front

What is the result of (-6x + 3) + (-x + 5)?

Back

The result is -7x + 8.

Front

What is the product of -7 and -5?

Back

The product is 35.