SOLUTION: Find the following of ^4 over the square root of (9a)^4 while assuming that ‘a’ can represent any real number.

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Question 401370: Find the following of ^4 over the square root of (9a)^4 while assuming that ‘a’ can represent any real number.
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
^4 over the square root of (9a)^4
IF YOU MEAN root%284%2C%289a%29%5E4%29
use formula root%28n%2Cx%5En%29=abs%28x%29 if n is even
_________root%28n%2Cx%5En%29=x if n is odd
root%284%2C%289a%29%5E4%29=abs%289a%29=9abs%28a%29
OR YOU MEAN %28sqrt%28%289a%29%5E4%29%29%5E4=%28%289a%29%5E2%29%5E4=%289a%29%5E%282%2A4%29=%289a%29%5E8
.
Used formulas root%28n%2Cx%29=x%5E%281%2Fn%29 (so sqrtx=x%5E%281%2F2%29), %28x%5Ek%29%5Em=x%5E%28k%2Bm%29
so