Quiz on Adding and Subtracting Complex Numbers

If you are adding two complex numbers you should

• add all the numbers together then divide by 2

• add only the real numbers and subtract the complex numbers

• add only the complex numbers and subtract the real numbers

• add only the real numbers together and then add only the complex numbers together then stop

Simplify

(12 - 4i) + (-2 + 8i)

• 8 + 104i

• 10 + 4i

• 14 - 4i

• 10 - 12i

Another way to express √-1 is?

• 1

• -1

• i

• 0

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

• -2+6i

• 12+6i

• -35-16i²

• -35 -16i

• A
• B
• C
• D

• A
• B
• C
• D

• 
• 
• 
• 

• A

• B

• C

• D

• A
• B
• C
• D

Choose the correct answer for the operation pictured.

• 7 - 13i

• 7 - i

• 1 - 13i

• 1 - i