Parts of an Expression

Front

What is a coefficient in an expression?

Back

A coefficient is a numerical factor that multiplies a variable in an expression. For example, in the expression 3x, 3 is the coefficient.

Front

How many coefficients can be in an expression?

Back

An expression can have multiple coefficients, one for each term that includes a variable.

Front

What are the terms in the expression 7x - 6 + 8?

Back

The terms are 7x, -6, and 8.

Front

How many terms are in the expression 5x + 3y - 2?

Back

There are 3 terms: 5x, 3y, and -2.

Front

What is a constant in an expression?

Back

A constant is a number that does not change and has no variable attached to it. For example, in the expression 4x + 5, 5 is the constant.

Front

What is a variable in an expression?

Back

A variable is a symbol, often a letter, that represents an unknown value. For example, in the expression 2x + 3, x is the variable.

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What is an algebraic expression?

Back

An algebraic expression is a combination of numbers, variables, and operations (like addition and subtraction) that represents a value.

Front

What is the difference between a term and a coefficient?

Back

A term is a single mathematical expression that can be a number, a variable, or a combination of both, while a coefficient is the numerical part of a term that contains a variable.

Front

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 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.