Complex Numbers

3+√-4

• 1

• 3-2i

• 5

• 3+2i

(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

√-36

• 6
• -6
• -6i
• 6i

What letter represents an imaginary number?

• a

• i

• j

• x

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

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

(2i)(3i)

• 5i
• -5
• 6i
• -6

How do you write a complex number?

• a-bi

• a+bi

• ai+b

• ai-b

Simplify: 
(10+ 15i) - (48 - 30i)

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