Question

How do you simplify `sqrt(-125)`?

Answer 1

`=color(blue)(5isqrt5`

Explanation:

`sqrt(-125) = sqrt(-1 *5*5*5)`

`sqrt(-1)= i` the imaginary unit

So,
`sqrt(-125) = isqrt( 5*5*5)`

`=color(blue)(5isqrt5`