Algebra problem help please?

Question

Evaluate each expression or indicate that the root is not a real number.

I completely forgot, how shameful of me :(

³√125

Simplify the radical expressions:

³√81

Answer 1

Cube roots?

Both roots are real numbers.

cube root 125 = 5

cube root 81 = cube root (3^3 *3)= 3 cube root 3

Answer 2

5^3=125

and 81=3^4 or 9^2

as u r lukin out for cube root thn 81=27 multipliedwith cube root of 3.thisis becoz wen u tk cube roots u take three common base. for eg cube root of 125 is [5X5X5=125[ bt square root of 125 is 5 multiplied wid square root of 5 ie 2.2........

Answer 3

S could equal to 3^4  or 9^2

For 125, the S would equal to

5^3