2A Complex Numbers and Quadratics

Multiply: 
(4 – 3i)(-7 – 2i)

• A.  -23 + 13i
• B.  -23 - 29i
• C.  -34 + 13i
• D.  -34 - 29i

Simplify
(-6 - 2i)²

• 32
• 36-4i
• 36+24i
• 32+24i

What does i² = ?

• -1
• √-1
• 1
• -√1

(1-3i)(2+5i)

• 22-i
• 16-i
• 17-i

Calculate:
2i × 4i

• 8i
• 6i
• 8i²
• 6i²

What is the conjugate of i + 4?

• i + 4
• i - 4
• -i-4
• -i+4

What is the conjugate of -4i - 6?

• -4i + 6
• 4i + 6
• -6 + 4i
• -6 - 4i

• A
• B
• C
• D

• A
• B
• C
• D

_____ is the only state that can be typed on one row of keys.

• Alaska

• Iowa

• Kansas

• Ohio