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Algebra 2
Name___________________________________
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Complex Numbers: Operations
Date________________ Period____
Addition and Subtraction
1) (2 - 5i) + (4 - 5i)
2) (6i) + (-7 - 4i) + 5
3) 6 - 7 - (4 - 3i)
4) -5 + (6i) - (5 - 7i)
5) (-4 - 7i) + (2i) + 4
6) (-4 + 7i) - (6 + 8i)
7) (-5 - 7i) - (-2 + 2i)
8) (-8 - 8i) - (7 + 6i)
Multiplication
9) (8 + 2i)(-3 - 6i)
10) (7 + 2i)
11) (-8 - 8i)(6 - i)
12) (3i)(-i)(7 - i)
13) (6 + 3i)(-6 - 6i)
14) (-3 + 7i)(1 + 4i)
15) (7i)(-4i)(8 + 5i)
16) (-6 - 3i)(-4 - 6i)
2
Divide
17)
1 - 6i
-7 - i
18)
1 - 3i
-7 - 2i
19)
-6 + 8i
7 + 5i
20)
1 + 6i
-6 + 6i
21)
-2 - 7i
3 + 4i
22)
-4 + 4i
-8 - 8i
23)
2-i
2 - 7i
24)
-4 + 8i
1 - 2i
Worksheet by Kuta Software LLC
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Answers to Complex Numbers: Operations
1) 6 - 10i
5) -5i
9) -12 - 54i
13) -18 - 54i
-1 + 43i
17)
50
-34 - 13i
21)
25
2) -2 + 2i
6) -10 - i
10) 45 + 28i
14) -31 - 5i
-1 + 23i
18)
53
i
22) 2
3) -5 + 3i
7) -3 - 9i
11) -56 - 40i
15) 224 + 140i
-1 + 43i
19)
37
11 + 12i
23)
53
4) -10 + 13i
8) -15 - 14i
12) 21 - 3i
16) 6 + 48i
5 - 7i
20)
12
24) -4
Worksheet by Kuta Software LLC
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