Adding and Subtracting Complex Numbers
Simplify: (1 + 3i) + (7 − 2i)
8 + i
4(3−7i)
12 - 28i
i1
i
sqrt(-20)
isqrt20
What complex number is represented by the graph?
-3 + i
Identify the LIKE TERMS
3 + 9i − 2i + 6i2
9i and -2i
(5−6i)(5+6i)
61
i62
-1
(7i)(2i)
-14
What complex number is shown on the graph?
-2 - 3i
Simplify
(8 - 4i) + (5 - 3i)
13 - 7i
(11−3i)(2+i)
25 + 5i
i43
-i
sqrt192
8sqrt3
Graph -2i - 3i on a graph.
Answer will be on whiteboard
Simplify the expression:
(1 + 5i) + (1 − 5i)
2
(-3-i)(6-i)
-19 - 3i
i47
-i
(isqrt5)^2
-5
Graph -4i2 on a graph
Answer will be shown on the whiteboard
Simplify the expression:
(5 + 4i) − (−1 − 2i)
6 + 6i
B
i17
i
14sqrt(-180)
84isqrt5
Where is point B located?
-3