Operations of Imaginary Numbers

Calculate: 
(1 − 2i) + (-4 + 2i)

• -3

• -3 − 4i

• 5 − 4i

• 5

Tags

CCSS.HSN.CN.A.2

Calculate:
-4 (13 + 5i) 

• -52 − 20i

• 9 + i

• 17 − 20i

• -52 + 20i

Tags

CCSS.HSN.CN.A.2

6i (-5 + 10i)

• -30i + 60i²

• 30i − 16i²

• 11i + 60i²

• -11i²+ 16i

Tags

CCSS.HSN.CN.A.2

Calculate (multiply):
 (4 + 3i)(4 − 3i)

• 16 − 9i²

• 25

• 7

• 8 − 6i

Tags

CCSS.HSN.CN.C.8

Simplify: 
(10+ 15i)-(48 - 30i)

• 58 - 45i

• 58 - 15i

• -38 - 15i

• -38 + 45i

Tags

CCSS.HSN.CN.A.2

i⁷

• i

• -i

• 1

• -1

Tags

CCSS.HSN.CN.A.2

Simplify -√-48

• 4i√3

• -4i√3

• i√48

• -48i

Simplify √-81

• -√81

• -9i

• 9i

• 81i

Simplify √-45

• 3i√5

• -3i√5

• -i√45

• 45i

Simplify:
(-3i)(4i)(-5i)

• -60i

• 60

• -60

• 60i

Tags

CCSS.HSN.CN.A.2