SOLUTION: I have a question that states: find each expression as a single radical then simplify your answer double squareroot 80. I do not know how to type this in so hopefully you can he

Algebra ->  Functions -> SOLUTION: I have a question that states: find each expression as a single radical then simplify your answer double squareroot 80. I do not know how to type this in so hopefully you can he      Log On


   

Question 87828: I have a question that states: find each expression as a single radical then simplify your answer double squareroot 80. I do not know how to type this in so hopefully you can help by the way that I have done it.
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
+sqrt%28sqrt%2880%29%29+

A square root of a square root is actually a 4th root: root%284%2C80%29+.
To do a 4th root, you must know that 2^4=16 and 3^4= 81. In this case, since 80 is divisible by 16, we use this number:
root%284%2C80%29+
root%284%2C16%29%2Aroot%284%2C5%29+
2%2A+root%284%2C5%29+

R^2 Retired from SCC