Simplifying Imaginary and Complex Numbers

Simplify: 
(10+ 15i) - (48 - 30i)

• 58 - 45i

• 58 - 15i

• -38 - 15i

• -38 + 45i

Simplify 
√-25

• -5i

• 5

• ±5i

• -5

Which of the following is equivalent to (3-5i)-(6+2i)

• -3-7i

• -3-3i

• 3-3i

• 9-7i

Simplify √-45

• ±3i√5

• -3i√5

• -i√45

• 45i

Simplify: -5(-7 + 7i) + 2(6 - 6i)

• 47 - 47i

• 47 - 23i

• 23 + 47i

• 23 - 23i

Q1. What is the value of x?

• A) 10

• B) -10

• C) 10i

• D) -10i

i² equals...

• 1

• -1

• -i

• 0

What is the value of x if x = 10?

• 10

• -10

• 10i

• -10i

Simplify -√-48

• 4i√3

• ±4i√3

• i√48

• -48i

Simplify

• 7

• -7

• ±7i

• -7i