SaiBook.us Algebra

Lesson Example Discussion Quiz: Class Homework

Quiz At Home

Title: Addition and Subtraction of complex numbers

Grade: 8-b Lesson: S2-L5

Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the five problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts.

Quiz: at Home

Problem Id	Problem	Options
1	Given \$z_1 = -3 + 7i\$ and \$z_2 = 5 - 2i\$, compute: \$2z_1 + 3z_2 - 4(z_1 - z_2)\$.	A) 41 + 24i B) 41 - 28i C) 28 - 14i D) 28 + 14i
2	Compute the following: (6 − 2i) − (1 + 3i)	A) 9 - 2i B) 8 - 2i C) 5 - 5i D) 6 + 2i
3	Simplify the following complex expression: (13 - 9i) - (5 + 8i) + 3(2 - 7i).	A) 41 - 14i B) 41 - 15i C) 14 - 35i D) 14 - 38i
4	Simplify the following expression: (3 + 4i) + (5 − 2i).	A) 8 + 2i B) 19 + i C) 10 + 12i D) 1 + 5i
5	Simplify the following expression: (4 + 7i) - 2(3 - 5i) + (6 - 8i) + 3(-1 + 4i)	A) 1 + 21i B) 1 + 20i C) 2 + 17i D) 2 + 17i
6	Subtract two complex numbers and then add another complex number: (7 + 2i) − (5 + 3i) + (2 − i)	A) 4 - 2i B) 2 - i C) i - 2 D) 2 + 4i
7	Find the sum of two complex numbers and then subtract the third one: (8 + 5i) + (3 − 2i) − (4 + 6i)	A) 7 - 3i B) 3 + 7i C) 7i - 3 D) 3i + 7
8	Find the sum of two complex numbers and then subtract their sum from another complex number: (2 + 3i) + (4 − i) − (2 + 3i) + (- 4 + i)	A) 5i B) 0 C) 4 D) 3i
9	Add three complex numbers and then subtract the sum of two complex numbers: (1 + 4i) + (2 − 3i) + (3 + i) − (1 + 4i) + (2 − 3i)	A) 5 - 7i B) - 2i - 3 C) 7 - 5i D) - 3 + 4i
10	Subtract (0 − 9i) − (0 − 2i) + (3 + 0i).	A) 7 - 3i B) - 3 + 7i C) 7 + 3i D) 3 - 7i

Problem Id

Problem

Options

Given \$z_1 = -3 + 7i\$ and \$z_2 = 5 - 2i\$, compute: \$2z_1 + 3z_2 - 4(z_1 - z_2)\$.

A) 41 + 24i

B) 41 - 28i

C) 28 - 14i

D) 28 + 14i

Compute the following:
(6 − 2i) − (1 + 3i)

A) 9 - 2i

B) 8 - 2i

C) 5 - 5i

D) 6 + 2i

Simplify the following complex expression: (13 - 9i) - (5 + 8i) + 3(2 - 7i).

A) 41 - 14i

B) 41 - 15i

C) 14 - 35i

D) 14 - 38i

Simplify the following expression: (3 + 4i) + (5 − 2i).

A) 8 + 2i

B) 19 + i

C) 10 + 12i

D) 1 + 5i

Simplify the following expression:
(4 + 7i) - 2(3 - 5i) + (6 - 8i) + 3(-1 + 4i)

A) 1 + 21i

B) 1 + 20i

C) 2 + 17i

D) 2 + 17i

Subtract two complex numbers and then add another complex number:
(7 + 2i) − (5 + 3i) + (2 − i)

A) 4 - 2i

B) 2 - i

C) i - 2

D) 2 + 4i

Find the sum of two complex numbers and then subtract the third one:
(8 + 5i) + (3 − 2i) − (4 + 6i)

A) 7 - 3i

B) 3 + 7i

C) 7i - 3

D) 3i + 7

Find the sum of two complex numbers and then subtract their sum from another complex number:
(2 + 3i) + (4 − i) − (2 + 3i) + (- 4 + i)

A) 5i

B) 0

C) 4

D) 3i

Add three complex numbers and then subtract the sum of two complex numbers:
(1 + 4i) + (2 − 3i) + (3 + i) − (1 + 4i) + (2 − 3i)

A) 5 - 7i

B) - 2i - 3

C) 7 - 5i

D) - 3 + 4i

Subtract (0 − 9i) − (0 − 2i) + (3 + 0i).

A) 7 - 3i

B) - 3 + 7i

C) 7 + 3i

D) 3 - 7i