Secondary Math III Honors

Name___________________________________

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Complex Numbers and Quadratics

Date________________ Period____

Simplify. 1) (-3 + 2i) - (7 + 2i)

2) (8 - i) - (5 - 8i)

3) (-3 - 2i) + (-2 + 2i)

4) (-8 + 6i) - (4 - 7i)

5) (-7 + 7i) + (4 + 3i)

6) (6 - 8i) - (4 + 8i)

7) (8i)(-5i)

8) 6(-6i)

9) (-3i)(4i)(-4i)

10) (-3i)

2

Worksheet by Kuta Software LLC

-1-

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11) (1 + 2i)(-5 - 4i)

13) (-2 + 5i)

2

12) (8 - 8i)(7 + 7i)

14) (-2 - 5i)(-8 - 7i)

Solve each equation with the quadratic formula. 15) 8n 2 - 4n = -1

16) 6r 2 + 9 = 0

17) 7n 2 = -12

18) 8v 2 = -8v - 7

19) 10k 2 - 6k = 6

20) 2x 2 - 8x = 120

21) 10x 2 - 4x = -9

22) 2n 2 + 9 = 11n

Worksheet by Kuta Software LLC

-2-

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