Question

Please help with the square roots

Answer 1

`- √(81) = - 9 \\ √( - 25 = - 5)`

Explanation:

-81/9 9+9+9+9+9+9+9+9+9(81)

-9

-25/5 (5+5+5+5+5(25)

-5

Answer 2

Explanation:

-√81=-√(9)²=-9

A number inside a Square root cannot ne negative. So, the second one is not a real no.