Squaring Imaginary Numbers

• i

• -1

• 1

• -i

Tags

CCSS.HSN.CN.A.1

x² + 36 = 0

• x = ±6

• x = 6i

• x = -6

• x = ±6i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

2(x - 8)² + 40 = 16

• x = 8 ± 2i√3

• x = 8 ± √-12

• x = -8 ± 2i√3

• x = 8 ± 3i√2

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

• 6i√5

• -8√5

• 8i√5

• -8i√5

Tags

CCSS.HSN.CN.A.1

• A
• B
• C
• D

Tags

CCSS.HSN.CN.C.8

The expression (2 + 3i)² is equal to

• -5

• -5 + 12i

• 13

• 13 + 12i

Tags

CCSS.HSN.CN.C.8

• -24i√7

• 24i√7

• -24√7

• 24√7

Tags

CCSS.HSN.CN.A.1

• 
• 
• 
• 

What does i² =  ?

• 1

• -1

• √-1

• √1

Tags

CCSS.HSN.CN.A.1