2.4A Adding and Subtracting Complex Numbers

What does i² =  ?

• 1
• -1
• √-1
• √1

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Simplify

• 5i
• -5i
• ±5i
• ±

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Simplify

• ± 10i
• ± 10
• ± √10i
• ± √10

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.B.4

Simplify

• ± 6
• ± 6i
• ± √6i
• ± √6

Tags

CCSS.HSA.SSE.B.3

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.1

CCSS.HSN.RN.A.2

Simplify

• ± 2 √5
• ± 4 √5
• ± 5 √2
• ± 5 √4

Tags

CCSS.HSA.SSE.B.3

CCSS.HSN.RN.A.2

Calculate:
i + 6i

• 6i²
• 7i
• 5i
• 7i²

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

x² + 36 = 0

• x = ±6

• x = 6i

• x = -6

• x = ±6i

Tags

CCSS.HSA.REI.B.4

CCSS.HSN.CN.C.7

Simplify:
(3 + 2i) + (4i + 6)

• 9 + 6i
• 7i + 8
• 9 + 6i²
• 9 - 6i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Simplify
2i - 7i + 10

• 10 - 5i
• 5i
• 10 + 9i
• 10 + 5i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Simplify:
(4 + 7i) - (3 + 2i)

• 1 + 5i
• 7 + 9i
• 1 + 9i
• -1 + 5i

Tags

CCSS.HSN.CN.A.2