Quiz on Complex Numbers

Simplify
3i - (4 + 7i)

• -4 + 10i

• 21 - 12i

• 4 - 10i

• -4 - 4i

Multiply
(2i)(3i)

• 5i

• -5

• 6i

• -6

What is the simplified form of (8 -3i)²?

• 73

• 16 - 6i

• 55 + 48i

• 55 - 48i

(4 - 2i) - (3 + 6i)

• 7 - 4i

• 1 + 4i

• 1 - 8i

• 7 - 8i

What letter represents an imaginary number?

• a

• i

• j

• x

3i+5i+2i+10

• 10

• 10i+10

• 10i

• 100i

Simplify   i²³

• i

• -1

• 1

• -i

√-36

• 6

• -6

• -6i

• 6i

Calculate: 
(1 − 2i) + (-4 + 2i)

• -3

• -3 − 4i

• 5 − 4i

• 5

• 1

• -1

• i

• -i