Imaginary Numbers practice

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:

4 + 7i - 3 - 2i

• 1 + 5i

• 7 + 9i

• 1 + 9i

• -1 + 5i

Tags

CCSS.HSN.CN.A.1

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

 $2-\sqrt{-9}$  

• 2-3i

• 2+3= 5

• 2+3i

• 2 - 3= -1

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

What is the value of i²?

• -1

• 1

• i

• -i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

• 7

• -7

• 7i

• -7i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Simplify
2i - 7i + 10

• -5i+10
• 5i
• 9i+10
• 5i+10

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

(2+3i)(4-2i)

• 14+8i
• 48+16i
• 12-8i
• 2-8i

Tags

CCSS.HSN.CN.A.2

 $\sqrt{-4}$  

• 2i

• -2i

• 2

• 4i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2