Evaluating 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 does it mean to evaluate an expression?

Back

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

Front

Evaluate x² when x = -2.

Back

4

Front

Evaluate 3(2x + z) when x = 8 and z = 2.

Back

54

Front

Evaluate b² + 4 when b = 3.

Back

13

Front

Evaluate 2r + 1 if r = -3.

Back

-5

Front

Evaluate 19 + h when h = -6.

Back

13

Front

What is the value of x in the expression 5x = 20?

Back

4

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 two or more terms inside a set of parentheses.

Front

Evaluate 4(x + 2) when x = 3.

Back

20