Evaluating Algebraic Expressions

Front

Evaluate x² + 2x - 1 when x = -3

Back

2

Front

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

Back

54

Front

Evaluate 4y if y = 3

Back

12

Front

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

Back

22

Front

Evaluate 2r + 1 if r = -3

Back

-5

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the value of x in the expression 5x + 3 when x = 2?

Back

13

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents an unknown value.