The Complex Number System

Practice Questions

Common Core: High School - Number and Quantity › The Complex Number System

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1

What does the following equal?

2

Simplify.

$2i\cdot 10i\cdot -3i$

3

Simplifying the following.

$\sqrt{-9}\times\sqrt{18}$

4

Simplifying the following.

$\sqrt{-9}\times\sqrt{18}$

5

Express $\sqrt{-9}$ as a pure imaginary number.

6

Solve.

$x^{2}-2x+5$

7

Find the conjugate of the complex number.

8

Solve.

$x^{2}-2x+5$

9

What does the following equal?

10

Find the conjugate of the complex number.

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