Question

I didn't understand what this number. is. Is it a no. which is positive and negative at same time??​

Answer 1

Answer: -5 and +5

Step-by-step explanation:

it means -5 and +5 both are the answers

Answer 2

Step-by-step explanation:

No.

It is not at the same time

It is either +5 or -5

Consider

$\sqrt{25} = \pm5$

This shows

$( - 5)^{2} = 25$

and

$( + 5) ^{2} = 25$