Simplifying Imaginary Numbers and Adding/Subtracting Complex Numbers

(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

• A
• B
• C
• D

Tags

CCSS.HSN.CN.A.3

• A
• B
• C
• D

Tags

CCSS.HSN.CN.A.3

(2i)(3i)

• 5i

• -5

• 6i²

• -6

Tags

CCSS.HSN.CN.A.2

Simplify √-45

• 3i√5

• -3i√5

• -i√45

• 45i

Simplify 2√-32

• 2i√32

• 4i√2

• 8i√2

• -16i√2

• A
• B
• C
• D

Tags

CCSS.HSN.CN.A.3

What does i² =  ?

• 1

• -1

• √-1

• √1

Tags

CCSS.HSN.CN.A.1

Calculate:
i + 6i

• 6i²

• 7i

• 5i

• 7i²

Tags

CCSS.HSN.CN.A.2