Chapter 6 and Complex Numbers Flashcards

1

(-2 - 4i) - (3 - 4i)

-5
1 + 8i
-5 - 8i
-1 - 8i

2

How many ways can you answer a 6 Question True/False Quiz?

72
48
64
36

3

(6 - 4i)(-6 + 5i)

-56 - 54i
-56 + 54i
-36 + 54i
-16 + 54i

4

Simplify: (2i)(-4i)

-8i
8i
8
-8

5

Simplify: √-75

5i√3
-5√3
25i√3
i√25

6

Simplify: (3 - 2i) + (1 - 4i)

3 + 8i
4 - 2i
4 + 6i
4 - 6i

7

There are 18 students in a spelling bee. How many ways can students go 1st, 2nd, 3rd & 4th?

75,200
4896
73,440
324

8

Simplify: (-3i)(-4i)

12i
-12i
12
-12

9

Write the number in a + bi form: √-25 + 8

8 + 5i
8 + -5i
-8 + 5i
5i2 + 8

10

-2(3i)(-5i)

-30
30
30i
-30i

11

Factor the expression: x² - 19x +90

(x - 9)(x + 10)
(x - 9)(x - 10)
(x - 10)(x + 9)
(x + 10)(x + 9)

12

Write in Standard Form: 5x²(3x²+ 2x³)

15x4 + 10x5
10x5 + 15x4
10x6 + 15x4
15x4 + 10x6

13

write the number in a + bi form: √-64 + 6

6 + 8i2
6 + 8i
-6 + 8i
8 + 6i

14

Find the absolute value of -2 + 6i

2√32
4√10
4√2
2√10

15

Factor the expression: 4x² - 9

(2x - 3)2
(4x + 1)(x - 9)
(4x - 1)(x + 9)
(2x + 3)(2x - 3)

16

(1 + 3i) - (-2 - 3i)

-1 + 6i
3 + 6i
3 - 6i
3 + 0i

17

Factor the expression: 2x²- 5x -25

(2x - 5)(x - 5)
(2x + 5)(x + 5)
(2x + 5)(x - 5)
(x + 5)(2x - 5)

18

(3 + 3i)(1 - 2i)

-3 - 3i
9 + 3i
3 - 6i
9 - 3i

19

Write a polynomial function with zeros at 4, -3, and 1.

x3 - 13x2 +24x -7
x3 + 12x2 - 2x -11
x3 -2x2 - 11x - 7
x3 - 2x2 - 11x +12

20

Solve the equation: x⁴ - 29x²= -100

4, -4, 5, -5
25, -25, 4, -4
10, -10
5, -5, 2, -2

Chapter 6 and Complex Numbers

Questions 20

Chapter 6 and Complex Numbers

Questions 20