Quiz Retake

√48

• 4√2
• 6√3
• 4√3
• 4√2

Tags

CCSS.HSN.RN.A.2

Simplify:
√45

• 9√5
• 3√5
• 5√9
• 3√15

Tags

CCSS.HSN.RN.A.2

Simplify √-8

• i√8

• -2i√2

• 2i√2

• -8i

 $simplify\ -\sqrt{81}$ 

• 9

• -9

• 9i

• -9i

• 7√3
• Can't Simplify
• 6√15
• 6√3

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSN.RN.A.1

CCSS.HSN.RN.A.2

Calculate:
(4 − 7i) − (-3 + 6i)

• 7 − 13i
• 7 − i 
• 1 − 13i
• 1 − i 

Tags

CCSS.HSN.CN.A.2

Calculate: 
(1 − 2i) + (-4 + 2i)

• -3
• -3 − 4i
• 5 − 4i
• 5

Tags

CCSS.HSN.CN.A.2

Calculate (multiply):
(1 − 2i)(6 + 5i)

• 16 − 7i
• -16 + 7i
• -16 − 7i
• 16 + 7i

Tags

CCSS.HSN.CN.A.2

Calculate (multiply):

(3 + 2i)(3 − 2i)

• 9 − 4i²

• 13

• 5

• 6 - 4i

Calculate:

4i (13 + 5i)

• 52i − 20

• 9 + i

• 17 − 20i

• -52 + 20i²