Complex Number Operations

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

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

Calculate:
(4 − 7i) − (-3 + 6i)

• 7 − 13i
• 7 − i 
• 1 − 13i
• 1 − i 

Calculate: 
(1 − 2i) + (-4 + 2i)

• -3
• -3 − 4i
• 5 − 4i
• 5

Calculate:
i + 6i

• 6i²
• 7i
• 5i
• 7i²

Calculate:
(4 − 7i) − (-3 + 6i)

• 7 − 13i
• 7 − i 
• 1 − 13i
• 1 − i 

Calculate: 
(1 − 2i) + (-4 + 2i)

• -3
• -3 − 4i
• 5 − 4i
• 5

Calculate: 
-12i + 7i

• 19i
• -19i
• 5i
• -5i

(5 − 3i) + (-6 + 2i)

• -1 -1i
• 11 + 5i
• -11 −  5i
• 11 − 1i

Simplify: √-64

• -8
• 8i
• -8i
• 8

Simplify
2i - 7i + 10

• -5i+10
• 5i
• 9i+10
• 5i+10