Review Operations with Imaginary Numbers

Simplify: 
(10+ 15i)-(48 - 30i)

• 58 - 45i

• 58 - 15i

• -38 - 15i

• -38 + 45i

i⁷

• i

• -i

• 1

• -1

Simplify -√-48

• 4i√3

• -4i√3

• i√48

• -48i

Simplify:
(-3i)(4i)(-5i)

• -60i

• 60

• -60

• 60i

(2i)(3i)

• 5i

• -5

• 6i

• -6

What is the "imaginary part" of the complex number (-2+7i)?

• 2

• -2

• 7i

• -7i

i(2+5i)

• -5+2i

• 5-2i

• 7i

• 2i+5i

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

• 14+8i

• 48+16i

• 12-8i

• 2-8i

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

• -1-5i

• -1-i

• 11-i

• -30-6i

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

• -3-7i

• -3-3i

• 3-3i

• 9-7i