Topic 6 Review Doodle Notes Lesson Slides: 4 Slides

4 Slides • 7 Questions

1

Topic 6 Review
Doodle Notes

2

Complex Numbers Operations

Multiplying Complex Numbers

3

Multiple Choice

Determine the product of the given numbers. Write the answer in the form a+bi, where a and b are real numbers.

. $\left(7-2i\right)\left(2+3i\right)+\left(3-5i\right)\left(9+5i\right)$

1

$72-13i$

2

$41+i$

3

$41-i$

4

$72+13i$

4

Long Division

Synthetic Division

Remainder Theorem:
f(-4)=30

5

Multiple Choice

Divide:
(9x² + 6x) ÷ 3x

1

3x + 2

2

3x² + 2x

3

5x²

4

3x + 6

6

Multiple Choice

if f(x) = 3x² -9x -20, find the value of f(5) using synthetic division.

1

0

2

10

3

15

4

-7

7

Multiple Choice

Which term is missing in this problem when you set up long division?
(2x³ + 5x² + 9) ÷ (x + 3)

1

x⁴

2

x³

3

x²

4

x

8

Multiple Choice

Someone divided $2x^4-9x^3-21x^2+88x+48$ by $\left(x-4\right)$ using synthetic division.

What is the proper way to write the answer for the following problem?

1

2x³-x²-25x-12

2

2x⁴-x³-25x²-12x+0

9

-12

-1

3

-4

Find the roots with factoring and graphing

Two real roots

10

Multiple Select

Which of the following mean the same thing as "roots?"

1

x-intercepts

2

zeros

3

y-intercepts

4

solutions

11

Multiple Choice

What are the zeros of x²+9x+14

1

2, 7

2

-2, -7

3

2, -7

4

-2, 7

Topic 6 Review
Doodle Notes

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