Int. 3 Unit 6 Practice Quiz

Simplify:
(2 - 4i) + (5 + 6i)

• 7 + 2i
• 7 - 2i
• 7 + 2i²
• 7 - 2i²

Simplify

• A

• B

• C

• D

Solve by taking square roots:

-3b² - 4 = 26

• k = ±2i√30

• k = ±i√30

• k = ±2i√10

• k = ±i√10

Solve by taking square roots:

3 - 9r² = 12

• ± 9i

• ± 1

• ± 1

• ± i

• 1

• -1

Simplify
(-6 - 2i)²

• 32
• 36-4i
• 36+24i
• 32+24i

• A
• B
• C
• D

(2i)(3i)

• 5i
• -5
• 6i
• -6