Performing Operations with Complex Numbers Answers

Which equation illustrates the identity property of multiplication?

What is the value of the product (4 – 2i)(6 + 2i)?

Which property of addition is shown in the equation below? c + di + 0 + 0i = c + di

What is the additive inverse of the complex number 13 – 2i?

Which expression is equivalent to ?

Which equation is an example of the commutative property of multiplication?

Helene is finding the sum (9 + 10i) + (–8 + 11i). She rewrites the sum as (–8 + 11)i + (9 + 10)i. Which statement explains the property of addition that she made an error in using?

What is the sum of 15 – 6i and –2 + 9i?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (–3 + i) + (18 + 5i)?

Which property of addition is shown below? If x = 1 + 2i and y = –1 – 2i, then x + y = 0.