SOLUTION: add/subtracting rational expressions 3/z - z - 4/z

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Question 173554: add/subtracting rational expressions
3/z - z - 4/z
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3/z - z - 4/z
3/z-z-4/z
(3-z*z-4)/z
(-z^2-1)/z
-(z^2+1)/z