Evaluating Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is an expression that contains numbers, operations, and one or more variables.

Front

Evaluate the expression when x = 8: 2x + x - 10

Back

14

Front

Evaluate the expression when x = 2: 3x + 8

Back

14

Front

Evaluate the expression when p = 9 and q = 2: |10p - 7q|

Back

76

Front

Evaluate the expression when a = 4 and b = -2: a^2 - b^2

Back

12

Front

What is the value of x in the expression 5x + 3 = 18?

Back

x = 3

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

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction.

Front

What is the difference between a variable and a constant in an expression?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value.

Front

How do you simplify the expression 4(x + 2) - 3?

Back

4x + 8 - 3 = 4x + 5.