Answer:
± 8i
Step-by-step explanation:
note that [tex]\sqrt{-1}[/tex] = i
using the rule of radicals
• [tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex], hence
[tex]\sqrt{-64}[/tex]
= ± [tex]\sqrt{64(-1)}[/tex]
= ± [tex]\sqrt{64}[/tex] × [tex]\sqrt{-1}[/tex] = ± 8i
The square root of -64 is -8.
How?
-8 x 8 = -64.
wait thats wrong there
its 8i
