SOLUTION: I have to find the indicated root or state that the expression is not a real number. Can you please tell me if I'm right? The problem is: -4th root Sqrt81 I can't find anyw

Question 43341: I have to find the indicated root or state that the expression is not a real number. Can you please tell me if I'm right?
The problem is:
-4th root Sqrt81
I can't find anywhere that it says if the root number is negative whether or not it is a real number. If I multiply negative 3 out 4 times I get 81. Please help!
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Are you looking for the four 4th roots of 81?
or are you looking for the four 4th roots of sqrt(81)?
What you say about 3^4 being 81 is correct but it is
hard to tell from your posting exactly what problem you
are trying to solve.
Cheers,
Stan H.
RELATED QUESTIONS
This does not make sense to me. I am not getting the correct answer. I think I have the... (answered by stanbon)

Find the real number root for -1.69 . I got -0.845 and -1.3 . Can you tell me if i'm... (answered by stanbon)

I don't understand this!! Find the indicated root or state that the expression is... (answered by stanbon)

Hello. The problem is -3 (cube root, I dont know how to type the sign) -27. I have come... (answered by Nate)

Evaluate each radiacal expression if it is a real number use a calculator toapproximate... (answered by stanbon)

Hi, can you help me with this please, Consider the function {{{1/(2x-1)}}} State the... (answered by MathLover1)

I have to simplify the following expression. Can you please tell me if I did this right? (answered by fractalier)

Factor completely, if the polynomial is prime, state this. 25a^a-23a-2. I do not... (answered by solver91311)

I have a question about quadratic equation. I know if you need to square a negative... (answered by ankor@dixie-net.com,KMST)