Unit 5 Review (Imaginary Solutions)

Simplify: 
(7 + 2i)(9 - 6i)

• 75-24i
• 63 - 24i  - 12i²
• 51 - 24i
• 58 + 60i

Simplify 
√-25

• -5i
• 5
• 5i
• -5

What does i² = ?

• -1
• √-1
• 1
• -√1

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

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

Multiply
(2i)(3i)

• 5i
• -5
• 6i
• -6

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

• 7 - 4i

• 1 + 4i

• 1 - 8i

• 7 - 8i

What are the zeros of the function f(x) = x² + 64?

Solve x² - 5x + 10 = 0