Quiz about Quizizz 3.2_Complex Number

Question 1

Simplify:
(10+ 15i) - (48 - 30i)

Accepted Answer

-38 + 45i

Answer

58 - 45i

Answer

58 - 15i

Answer

-38 - 15i

Question 2

Find the sum.
(5-2i) + (-7+8i)

Accepted Answer

-2+6i

Answer

12+6i

Answer

-35-16i2

Answer

-35 -16i

Question 3

Question 3.

Accepted Answer

10i

Answer

10

Answer

-10

Answer

-10i

Question 4

(4 - 2i) - (3 + 6i)

Accepted Answer

1 - 8i

Answer

7 - 4i

Answer

1 + 4i

Answer

7 - 8i

Question 5

$$k^2=\ 16$$

Accepted Answer

$$\pm4$$

Answer

4

Answer

4i

Answer

$$\pm4i$$

Question 6

Add the two complex numbers:

$$\left(-7+16i\right)+\left(-18+13i\right)$$

Accepted Answer

$$-25+29i$$

Answer

$$-23-5i$$

Answer

$$-25-29i$$

Answer

$$-11+29i$$

Question 7

Rewrite the following expression into exponential form:

$$\frac{1}{\left(\sqrt[4]{5p}\right)^5}$$

Accepted Answer

$$\left(5p\right)^{-\frac{5}{4}}$$

Answer

$$p^{\frac{3}{2}}$$

Answer

$$\left(6p\right)^{\frac{2}{3}}$$

Answer

$$\left(6p\right)^{\frac{5}{3}}$$

Question 8

$$\left(11-3i\right)\left(2+i\right)$$

Accepted Answer

$$25+5i$$

Answer

$$22-3i$$

Answer

$$19-5i$$

Answer

$$3+22i$$

Question 9

Add, subtract, or multiply. Write the answer in the form of a+bi.

$$4i\ \left(-2+7i\ \right)$$

Accepted Answer

$$-28-8i$$

Answer

$$28i$$

Answer

$$5+4i$$

Answer

$$12+3i$$

Question 10

$$\left(-6i\right)\left(-6-2i\right)+\left(3i\right)\left(8+4i\right)$$

Accepted Answer

$$-24+60i$$

Answer

$$-24+75i$$

Answer

$$-12+72i$$

Answer

$$12i$$

Quizizz 3.2_Complex Number

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics