Question

I’m confused on this question. Is it 4+1 ?

Answer 1

Answer:

$4i$

Step-by-step explanation:

We begin with the following radical $\sqrt{-16}$

Firstly, we can take out the negative by putting an $i$ on the outside of the radical

$i\sqrt{16}$

Next, we can take the 16 out of the radical, which will leave us with

$4i$

Answer 2

Answer:

Your answer should be 4 i.