Simplify sqrt[121 x^12 y^16 z^6]

Re: Simplify

Braindead said:
Square root [ 121 x^12 y^16 z^6][/list][/list][/code]
\(\displaystyle \L
11x^6 y^8 \left| {z^3 } \right|\)

Note the absolute value on the z. WHY not on the others?
 
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