Question

find the square root of the number.
$2\sqrt{-16}$
the square root is \square.

Explanation:

Step1: Rewrite sqrt(-16) using i

$\sqrt{-16} = \sqrt{16 \times (-1)} = \sqrt{16} \times \sqrt{-1} = 4i$

Step2: Multiply by the coefficient 2

$2 \times 4i = 8i$

Answer:

$8i$