Exploring Exponents and Integer Multiplication

The video lesson covers multiplying and exponents. It starts with a refresher on multiplying rules for integers, then explains exponents, including how to read and calculate them. The lesson also covers working with negative numbers and exponents, different types of exponent problems, and evaluating expressions with given values. Finally, it provides instructions for completing homework using the Classkick app.

What is the result of multiplying a negative number by another negative number?

• Positive

• Negative

• Zero

• Undefined

If you multiply a positive number by a positive number, what is the result?

• Undefined

• Positive

• Zero

• Negative

How do you read the exponent 5^3?

• Five cubed

• Five squared

• Five to the fourth power

• Five to the second power

What is the base in the expression 7^2?

• 2

• 7

• 14

• 49

What does 3^4 mean?

• 3 - 3 - 3 - 3

• 3 / 3 / 3 / 3

• 3 * 3 * 3 * 3

• 3 + 3 + 3 + 3

Calculate the value of 2^3.

• 9

• 8

• 12

• 6

What is the result of (-3)^2?

• 6

• -6

• 9

• -9

How do you handle the expression -4^2?

• Calculate 4^2 and then make it negative

• Calculate -4 * -4

• Calculate -4 * 2

• Calculate 4 * 2 and then make it negative

Evaluate the expression if x = -2: x^2 + 3.

• 1

• 4

• 5

• 7

If m = 5, x = -2, and k = -3, what is the value of m * x * k^2?

• -90

• 90

• -30

• 30