Complex Questions for 4th Period

(3 + 2i) + (4 - 5i)

• 7 + 7i

• 1 - 3i

• 1 - 7i

• 7 - 3i

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

• 7 - 4i

• 1 + 4i

• 1 - 8i

• 7 - 8i

What does i² equal?

• -1

• √-1

• 1

• -√1

The expression (2 + 3i)² is equal to

• -5
• -5 + 12i
• 13
• 13 + 12i

(3 + 8i)(-2 - i)

• 2-19i

• 23-i

• 34+5i

• 23-i

(3+8i)(-2-i)

• 2-19i
• 23-i
• 34+5i
• 23-i

(2i)(3i)

• 5i
• -5
• 6i
• -6

(3i)(-2+4i)

• -6+12i
• -12-6i
• -2+7i
• 12+6i

 $3+3i+8-2i-7$  

Simplify

(5 - 2i) + (-7 + 8i)

• -2 + 6i

• 12 + 6i

• -35 - 16i²

• -35 - 16i