Complex Numbers

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

• 9 + 6i
• 7i + 8
• 9 + 6i²
• 9 - 6i

Tags

CCSS.HSN.CN.A.2

Simplify:
-3i(4 + 2i)

• 6 - 12i
• 6 + 12i
• -12i - 6i²
• -12i + 6i²

Tags

CCSS.HSA.APR.A.1

Simplify:
(2 - 3i)(5 + 4i)

• 22 - 7i
• 22 + 7i
• 22 - 7i²
• 22 + 7i²

Tags

CCSS.HSN.CN.C.8

What is the complex conjugate of  4-3i?

• A.  1/(4-3i)
• B. 1/(4+3i)
• C.  -4 + 3i
• D.  4 + 3i

Tags

CCSS.HSN.CN.A.3

(4-5i)(4+5i)

• 41
• -9
• 41+40i
• -9+40i

Tags

CCSS.HSN.CN.C.8

Simplify: 
(7 + 2i)(9 - 6i)

• 75-24i
• 63 - 24i  - 12i²
• 51 - 24i
• 58 + 60i

Tags

CCSS.HSN.CN.A.2

• 10
• -10
• 10i
• -10i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.CN.B.4

CCSS.HSN.CN.C.7

Multiply
(2i)(3i)

• 5i
• -5
• 6i
• -6

Tags

CCSS.HSN.CN.A.2

Multiply: 
(4 – 3i)(7 + 2i)

• A.  22 - 13i
• B.  28 - 19i
• C.  34 - 13i
• D.  -34 - 29i

Tags

CCSS.HSA.APR.A.1

What is the simplified form of (-6i)(3i)

• -18

• -18i

• 18

• -18i²

Tags

CCSS.HSN.CN.A.2