Quiz on Operations with Complex Numbers

Find the sum.
(5-2i) + (-7+8i)

• -2+6i

• 12+6i

• -35-16i²

• -35 -16i

Simplify.

• -5i

• 5

• 5i

• -5

The product of (3 -2i) and (7+6i) is

• 21 - 12i

• 9 + 4i

• 33 + 4i

• 21 + 16i

Simplify   i²³

• i

• -1

• 1

• -i

• A

• B

• C

• D

What is the simplified form of (-9 + 5i) + (3 -2i)

• -12 + 31i

• -6 + 3i

• -11 + 7i

• 5 - 3i

Lisa wants to buy two new dresses from the mall. If one dress costs (59 - 6i) and the other costs (34 + 17i), how much money will she need to bring to the mall?

• 82 dollars

• 93 + 11i dollars

• 93 - 23i dollars

• 25 - 23i dollars

(1 -i) + (-1 + i)

• 2 - 3i

• 3 - 2i

• 2 + 3i

• 0

Which of the following is equivalent to 
(5-3i)+(-6+2i)?

• -1-5i

• -1-i

• 11-i

• -30-6i