Algebraic Expressions

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 are variables in algebra?

Back

Variables are symbols (usually letters) that represent unknown values. In the expression 2x + 3, 'x' is a variable.

Front

Back

9

Front

What is the coefficient in the expression 5p + 4h - 2?

Back

The coefficients are the numbers in front of the variables. In this case, 5 is the coefficient of p and 4 is the coefficient of h.

Front

Back

4

Front

What is the constant in the expression 5p + 4h - 2?

Back

The constant is -2.

Front

Evaluate 2(a - 5) + 2 when a = 15.

Back

22

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 difference between an expression and an equation?

Back

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

Front

Identify the variables in the expression 4x + 7y - 3.

Back

The variables are x and y.