Evaluate square root of -16/(-1-3)

$\sqrt{\frac{- 16}{- 1 - 3}}$

Step 1

Subtract $3$ from $- 1$ .

$\sqrt{\frac{- 16}{- 4}}$

Step 2

Divide $- 16$ by $- 4$ .

$\sqrt{4}$

Step 3

Rewrite $4$ as $2^{2}$ .

$\sqrt{2^{2}}$

Step 4

Pull terms out from under the radical, assuming positive real numbers.

$2$