Operation on Imaginary Numbers

Simplify -√-48

• 4i√3

• -4i√3

• i√48

• -48i

Simplify √-81

• -√81

• -9i

• 9i

• 81i

Simplify √-28

• -√28

• -2i√7

• 2i√7

• 28i

Simplify √-45

• 3i√5

• -3i√5

• -i√45

• 45i

Simplify -√-8

• -i√8

• -2i√2

• 2i√2

• -8i

Simplify √-25

• i√25

• 5i

• -5i

• 25i

Simplify 2√-32

• 2i√32

• 4i√2

• 8i√2

• -16i√2

Calculate (multiply):
(1 − 2i)(6 + 5i)

• 16 − 7i

• -16 + 7i

• -16 − 7i

• 16 + 7i

Calculate:
i + 6i

• 6i²

• 7i

• 5i

• 7i²

Calculate:
(4 − 7i) − (-3 + 6i)

• 7 − 13i

• 7 − i 

• 1 − 13i

• 1 − i