Complex Numbers Quiz

Find the sum.

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

• -2+6i

• 12+6i

• -35-16i²

• -35 -16i

Simplify:

(10+ 15i) - (48 - 30i)

• 58 - 45i

• 58 - 15i

• -38 - 15i

• -38 + 45i

(2i)(3i)

• 5i

• -5

• 6i

• -6

What does i² = ?

• -1
• √-1
• 1
• -√1

Simplify 
√-25

• -5i
• 5
• 5i
• -5

Simplify
2i - 7i + 10

• -5i+10
• 5i
• 9i+10
• 5i+10

Simplify
3i - (4 + 7i)

• -4 + 10i
• 21 - 12i
• 4 - 10i
• -4 - 4i

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

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i