Powers of I and Complex Numbers

Multiply: 
(4 – 3i)(7 + 2i)

•  22 - 13i

•  28 - 19i

•  34 - 13i

•   -34 - 29i

Simplify

• 
• 
• 
• 

Simplify using the powers of i.

i²⁴

• i

• 1

• -1

• -i

Simplify using the powers of i.

-9i⁴³

• -9i

• 9i

• 9

• -9

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

• -60i

• 60

• -60

• 60i

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

• 2

• -2

• 7i

• -7i

What is the "real part" of the complex number (-4-3i)?

• -4

• 4

• -3i

• 3i

Simplify

3 - (-2 + 4i) - (5i)

• 5 - i

• -1 + 9i

• 5 - 9i

• 3 - 5i

(-6 + 2i) - (-1 - 3i) + (1 - 3i)

• -4 - 2i

• 4 + 2i

• 4 - 2i

• -4 + 2i