Question

Express the square root of -80 in its simplest terms.

Answer 1

Answer:

C

Step-by-step explanation:

noting that $\sqrt{-1}$ = i

Given

$\sqrt{-80}$

= $\sqrt{16(-1)(5)}$

= $\sqrt{16}$ × $\sqrt{-1}$ × $\sqrt{5}$

= 4i$\sqrt{5}$ → C