Operations with Complex Numbers

√-4

• -2

• -2i

• 4

• 2i

Tags

CCSS.HSN.CN.A.2

CCSS.HSN.CN.A.1

CCSS.HSN.CN.C.7

(5-2i) + (-7+8i)

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

Tags

CCSS.HSN.CN.A.2

CCSS.HSN.CN.A.1

(10+3i) - (2-9i)

• 20-27i
• 12-7i
• 8+12i
• 20-27i²

Tags

CCSS.HSA.APR.A.1

Choose the correct answer for the operation pictured.

• 7-13i
• 7-i
• 1-13i
• 1-i

Tags

CCSS.HSN.CN.A.2

Which of the following is equivalent to

(5-3i)+(-6+2i)?

• -1-5i

• -1-i

• 11-i

• -30-6i

Tags

CCSS.HSN.CN.A.2

CCSS.HSN.CN.A.1

What does i² = ?

• -1
• √-1
• 1
• -√1

Tags

CCSS.HSN.CN.A.2

CCSS.HSN.CN.A.1

(2i)(3i)

• 5i
• -5
• 6i
• -6

Tags

CCSS.HSN.CN.C.8

• A
• B
• C
• D

Tags

CCSS.HSN.CN.A.2

CCSS.HSN.CN.A.1

Simplify.
(5-i)(5+i)

• 26
• 24
• 25+i²
• 25-i²

Tags

CCSS.HSA.APR.A.1

Simplify: 
(10+ 15i) - (48 - 30i)

• 58 - 45i
• 58 - 15i
• -38 - 15i
• -38 + 45i

Tags

CCSS.HSA.APR.A.1