Re-Open: Add & Subtract Complex #s

Simplify: $\left(5-2i\right)+\left(-7+8i\right)$  

•  $-2+6i$ 

•  $12+6i$  

•  $-35-16i^2$  

•  $-35-16i$ 

Tags

CCSS.HSN.CN.A.2

Add/Subtract using the proper rules:

2i + 3 + 7 - 12i

• - 10 + 10i

• 10 - 10i

• 10 + 14i

• 4 - 10i

Add/Subtract using the proper rules:
(7 + 2i) - (-12 - 4i)

• -5 - 2i
• 19 - 2i
• -5 + 6i
• 19 + 6i

Tags

CCSS.HSN.CN.A.2

What does  $i^2$  equal?

• -1

•  $\sqrt{-1}$  

• 1

•  $-\sqrt{-1}$  
  

 $14i\ +\left(8i-24\right)$  

• -24 + 22i

• 24 - 22i

• -10 + 22i

• -336 + 112i

Simplify: 
(10+ 15i) - (48 - 30i)

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

Tags

CCSS.HSN.CN.A.2

Add/Subtract using the proper rules:
-3i + 2 - 4i + 16 - (4 - 8i)

• -15i + 22
• i + 14
• -i + 14
• 15i - 22

Tags

CCSS.HSA.APR.A.1

Simplify
 $\left(15-2i\right)-\left(3+5i\right)$  

•  $12-7i$  

•  $-12-7i$  

•  $12+7i$  

•  $-12+7i$  

Tags

CCSS.HSN.CN.A.2

What does i equal?

• -1

• $-\sqrt{1}$

• $\sqrt{-1}$

• $-\sqrt{x}$

Simplify  $\sqrt{242}$  

•  $2\sqrt{11}$  

•  $11\sqrt{2}$  

•  $4\sqrt{23}$  

•  $2\sqrt{11}$  

Tags

CCSS.HSA.SSE.B.3

CCSS.HSN.RN.A.1

CCSS.HSN.RN.A.2