Bell Ringer: Multiplying Complex Numbers

Multiply
3i(-2 + 4i)

• -6+12i
• -12-6i
• -2+7i
• 12+6i

Tags

CCSS.HSN.CN.A.2

(-3-i)(6-i)

• -21-7i
• -19-3i
• -15-5i
• -17-9i

Tags

CCSS.HSN.CN.A.2

(3+8i)(-2-i)

• 2-19i
• 23-i
• 34+5i
• 23-i

Tags

CCSS.HSN.CN.A.2

The expression (2 + 3i)² is equal to

• -5

• -5 + 12i

• 14

• 13 + 12i

Tags

CCSS.HSN.CN.C.8

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

Hint: i³ can be simplified

• 24

• -48i

• 48i

• 60

Tags

CCSS.HSN.CN.A.2