Question

PLEASE HELP I NEEED HELP ASAP

Answer 1

B

Explanation:

Using the rule of radicals

`√(a)` ×
`√(b)` ⇔
`√(ab)` and

`√(-1)` = i

Given

`√(-80)`

=
`√(16(5)(-1))`

=
`√(16)` ×
`√(5)` ×
`√(-1)`

= 4 ×
`√(5)` × i

= 4i
`√(5)` → B