Question

What’s the square root of negitive 64

Answer 1

Answer:

± 8i

Step-by-step explanation:

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

using the rule of radicals

• $\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$, hence

$\sqrt{-64}$

= ±  $\sqrt{64(-1)}$

= ± $\sqrt{64}$ × $\sqrt{-1}$ = ± 8i

Answer 2

The square root of -64 is -8.

How?

-8 x 8 = -64.

wait thats wrong there

its 8i