Equations with Real and Imaginary Numbers

Simplify.

• -5i
• 5
• 5i
• -5

Multiply: 
(4 – 3i)(-7 – 2i)

• A.  -23 + 13i
• B.  -23 - 29i
• C.  -34 + 13i
• D.  -34 - 29i

Tags

CCSS.HSN.CN.A.2

Simplify: 
(10+ 15i)-(48 - 30i)

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

Tags

CCSS.HSN.CN.A.2

Simplify
2i - 7i + 10

• 10 - 5i
• 5i
• 10 + 9i
• 10 + 5i

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

Multiply:
(2-5i)(2+5i)

• 29
• 4 - 25i
• 25 - 10i
• -21

Tags

CCSS.HSN.CN.C.8

i⁷⁹

• i
• 1
• -1
• -i

Tags

CCSS.HSN.CN.A.2

(2i)(3i)

• 5i
• -5
• 6i²
• -6

Tags

CCSS.HSN.CN.A.2

(3i)(-2+4i)

• -6+12i
• -12-6i
• -2+7i
• 12+6i

Tags

CCSS.HSN.CN.A.2

i¹³

• -1
• 1
• i
• -i

Tags

CCSS.HSN.CN.A.2