Question

Simplify the number using the imaginary unit i.
square root of -16

Answer 1

4i

Answer 2

howd you do that?

Answer 3

square root of 16 is 4... i says its negative.

Answer 4

i represents an imaginary sqrt of -1

Answer 5

oooh thank you so much!

Answer 6

np

Answer 7

Yah it is 4i.
i Represents the square root -1. So if your asked to find the square root of -4, you would find the square root of positive 4 and put an i next to your answer which in this case is 2i.