SOLUTION: write as a fraction and simplify z-4

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Question 367784: write as a fraction and simplify z-4

Found 2 solutions by Fombitz, nkalgebra:
Answer by Fombitz(32388) About Me  (Show Source):
Answer by nkalgebra(1) About Me  (Show Source):
You can put this solution on YOUR website!
z-4/1 and if you mean z^-4 = 1/z^4