Multiplying Imaginary Numbers: Key Concepts and Techniques

What is the value of i^2?

• 1

• i

• -1

• -i

What does the acronym FOIL stand for in the context of multiplying binomials?

• First, Outer, Inner, Last

• First, Outer, Inner, Largest

• First, Outer, Inner, Linear

• First, Outer, Inner, Least

When using the distributive property, what is the result of multiplying 4 by 3?

• 12

• 15

• 9

• 7

What is the result of multiplying 2i by 5i?

• 10i^2

• -10i^2

• -10i

• 10i

What is the simplified form of -10i^2?

• 10

• -10

• -1

• 1

How do you write the final answer in complex form?

• a - b

• a + b

• a - bi

• a + bi

What is the result of distributing 4 to both terms in the parentheses (3 - 5i)?

• 12 - 5i

• 12 + 5i

• 12 - 20i

• 12 + 20i

What is the result of combining -20i and 6i?

• -14i

• 26i

• -26i

• 14i

What is the result of distributing 8 to both terms in the parentheses (2 - 3i)?

• 16 - 3i

• 16 + 24i

• 16 - 24i

• 16 + 3i

What is the final simplified result of 16 - 24i + 10i - 15i^2?

• 1 + 14i

• 31 - 14i

• 31 + 14i

• 1 - 14i