Negative Bases and Exponents

The video tutorial explains exponent notation with negative bases, focusing on how negative bases behave when raised to odd and even powers. It highlights that a negative base raised to an odd power results in a negative outcome, while an even power results in a positive outcome. The tutorial also emphasizes the importance of brackets in determining the correct result of exponentiation.

What is the base in the expression -2^1?

• 2

• -2

• -1

• 1

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

• -2

• 4

• 2

• -4

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

• 8

• -8

• 4

• -4

What is the result of (-2)^4?

• -16

• -8

• 8

• 16

What happens when a negative base is raised to an odd power?

• The result is positive

• The result is zero

• The result is negative

• The result is undefined

What happens when a negative base is raised to an even power?

• The result is positive

• The result is undefined

• The result is zero

• The result is negative

Why is it important to use brackets in expressions like (-2)^2?

• Brackets are not important

• Brackets change the base value

• Brackets ensure the negative sign is included in the power

• Brackets make the expression easier to read

What is the result of -2^2 without brackets?

• 4

• -4

• -2

• 2

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

• 9

• -6

• -9

• 6

What is the result of -3^2 without brackets?

• -6

• 6

• 9

• -9