Operations of Imaginary Numbers

Multiply: 
(4 – 3i)(-7 – 2i)

•   -23 + 13i

•   -23 - 29i

•   -34 + 13i

•   -34 - 29i

Tags

CCSS.HSN.CN.A.2

What does i² =  ?

• 1

• -1

• √-1

• √1

Tags

CCSS.HSN.CN.A.1

(10 + 15i) - (48 - 30i)

• 58 - 45i

• 58 - 15i

• -38 - 15i

• -38 + 45i

Tags

CCSS.HSN.CN.A.2

Find the sum.

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

• -2 + 6i

• 12 + 6i

• -35 - 16i²

• -35 - 16i

Tags

CCSS.HSN.CN.A.2

What is the value of x?

• 10

• -10

• 10i

• -10i

i² equals...

• 1

• -1

• -i

• 0

Tags

CCSS.HSN.CN.A.1

• 10
• -10
• 10i
• -10i

(2i)(3i)

• 5i

• -5

• 6i²

• -6

Tags

CCSS.HSN.CN.A.2

Simplify √-23

• -√23

• 23i

• 23

• i√23

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

• 9 + 3i

• 9 + 5i

• -1 - 5i

• -1 + 5i

Tags

CCSS.HSN.CN.A.2