Understanding Exponents and Operations

What does the exponent in an expression indicate?

• The number to be added to the base

• The number of times the base is multiplied by itself

• The number to be subtracted from the base

• The number of times the base is divided by itself

What is the process of replacing variables with their given values called?

• Simplification

• Factoring

• Substitution

• Expansion

In the order of operations, which type of calculation is performed before multiplication?

• Addition

• Subtraction

• Exponents

• Division

What is the value of the expression 4x² when x = 3?

• 12

• 24

• 36

• 48

What is the value of the expression x³ - 5x + 25 when x = 3?

• 27

• 37

• 42

• 52