Imaginary and Complex Number Operations

Simplify.

• -5i
• 5
• 5i
• -5

Multiply:

(4 – 3i)(-7 – 2i)

• A. -23 + 13i

• B. -23 - 29i

• C. -34 + 13i

• D. -34 - 29i

Simplify: 
(10+ 15i)-(48 - 30i)

• 58 - 45i
• 58 - 15i
• -38 - 15i
• -38 + 45i

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

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

(2i)(3i)

• 5i
• -5
• 6i²
• -6

i¹³

• -1
• 1
• i
• -i

What does i² = ?

• -1
• √-1
• 1
• -√1

Simplify

• (-10+6i)/17

• (1+50i)/61

• (-23+36i)/25

• (-21+33i)/34

What is the conjugate of
7-2i? 

• 7+2i
• 7-2i
• 2-7i
• 2+7i

• A
• B
• C
• D