Free Printable Algebra 2 Quiz 1 - Quadratic Equations and Complex Numbers

1.

What does i² equal?

a)

-1

b)

√-1

c)

1

d)

-√1

2.

What letter represents an imaginary number?

a)

a

b)

i

c)

j

d)

x

3.

How do you write a complex number?

a)

a-bi

b)

a+bi

c)

ai+b

d)

ai-b

4.

What is the conjugate of $4i-8$ ?

a)

$4i-8$

b)

$4i+8$

c)

$16i-64$

d)

$16i^2-64$

5.

Add/Subtract using the proper rules:
(7 + 2i) - (-12 - 4i)

a)

-5 - 2i

b)

19 - 2i

c)

-5 + 6i

d)

19 + 6i

6.

Multiply

$\left(4+6i\right)\left(-6+4i\right)$

a)

$-54-16i$

b)

$-52i$

c)

$52i$

d)

$-48-20i$

7.

Simplify

a)

b)

c)

d)

8.

Simplify $\frac{4+6i}{-2i}$

a)

$-3+2i$

b)

$3-2i$

c)

$3+2i$

d)

$-3-2i$

9.

Solve

a)

x = -2 ± 2i√2

b)

x = -2 ± 2√4

c)

x = -2 ± 4i√2

d)

x = 2 ± 2i√2

10.

Solve.

$2x^2+9=-15$

a)

x = ±4i√3

b)

x = ±2i√3

c)

x = ±2√3

d)

x = ±4√3

Algebra 2 Quiz 1 - Quadratic Equations and Complex Numbers

Total questions: 10

Worksheet time: 26mins

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