Adding and Subtracting Imaginary and Complex Numbers

Simplify:

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

• 58 - 45i

• 58 - 15i

• -38 - 15i

• -38 + 45i

(2i)(3i)

• 5i

• -5

• 6i²

• -6

Simplify √-23

• -√23

• 23i

• 23

• i√23

Simplify √-45

• 3i√5

• -3i√5

• -i√45

• 45i

Simplify 2√-32

• 2i√32

• 4i√2

• 8i√2

• -16i√2

• A
• B
• C
• D

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