SOLUTION: The problem asks us to simplify this problem but I'm not sure what happens to the 2. sqrt 2-4/z^2+2/z^4 Any advice would be greatly appreciated.

Algebra ->  Radicals -> SOLUTION: The problem asks us to simplify this problem but I'm not sure what happens to the 2. sqrt 2-4/z^2+2/z^4 Any advice would be greatly appreciated.      Log On


   

Question 171819This question is from textbook intro algebra
: The problem asks us to simplify this problem but I'm not sure what happens to the 2.
sqrt 2-4/z^2+2/z^4
Any advice would be greatly appreciated. This question is from textbook intro algebra

Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!

sqrt%282-4%2Fz%5E2%2B2%2Fz%5E4%29

Get LCD of z%5E4

sqrt%282z%5E4%2Fz%5E4-4z%5E2%2Fz%5E4%2B2%2Fz%5E4%29

sqrt%28%282z%5E4-4z%5E2%2B2%29%2Fz%5E4%29

sqrt%282%28z%5E4-2z%5E2%2B1%29%2Fz%5E4%29

sqrt%282%28z%5E2-1%29%28z%5E2-2%29%2Fz%5E4%29

sqrt%282%28z%5E2-1%29%5E2%2Fz%5E4%29

sqrt%282%29sqrt%28%28z%5E2-1%29%5E2%29%2Fsqrt%28z%5E4%29

%28sqrt%282%29abs%28z%5E2-1%29%29%2Fz%5E2%29

Edwin