Complex numbers Quiz

Name: ______________________   Date: __________   Score: ____ / 10

10 questions. Calculator allowed. Show your working. steplyclass.com/algebra-2/complex-numbers/quiz/

1. 1

   Simplify √(−16)

   Answer: ____________________

2. 2

   Simplify (3 + 2i) + (1 − 5i)

   Answer: ____________________

3. 3

   Simplify (4 − i) − (2 + 3i)

   Answer: ____________________

4. 4

   Simplify 3i × 4i

   Answer: ____________________

5. 5

   Simplify i³

   Answer: ____________________

6. 6

   Simplify (3 − 2i)(2 + 5i)

   Answer: ____________________

7. 7

   Simplify i⁷

   Answer: ____________________

8. 8

   Simplify x² + 9 = 0 using i

   Answer: ____________________

9. 9

   Simplify (2 + i)(2 − i)
   1. A) 1
   2. B) 5
   3. C) −5

10. 10

    Simplify x² − 2x + 5 = 0 using i

    Answer: ____________________