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, 2x + 3 is an algebraic expression.

Front

What are variables in algebra?

Back

Variables are symbols (usually letters) that represent unknown values. In the expression 5p + 4h - 2, p and h are variables.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the value of 2x + 3 when x = 4?

Back

27

Front

What is the value of 4x when x = 5?

Back

20

Front

What is the expression x² + 2x + 3 when x = 4?

Back

27

Front

Identify the coefficients in the expression 5p + 4h - 2.

Back

The coefficients are 5 and 4.

Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change. In the expression 5p + 4h - 2, the number -2 is a constant.

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

What is the term for the highest power of a variable in an expression?

Back

The degree of the expression.