Question

QUICK GEOMETRY QUESTION!! easy!


It is asking me to simplify the number in the comment and here are my answer choices.
2
2i
-2
-2i

Answer 1

\[\sqrt{-4}\]

Answer 2

It needs to be i, correct? since it is a negative number under a square root?

Answer 3

sqrt{-4} = sqrt{-2*2} = 2i

Answer 4

Okay! thank you! may i ask, what would make the equation so that it turned out to be a negative number? like option -2i

Answer 5

Yeah, goformit100 is correct. Always remember that two negative numbers multiplied equals a positive number.

Answer 6

x^2 + 4 = 0