How to derive difference equation from Z transform function?

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William Smith
William Smith on 19 Feb 2015
How can i derive difference equation from Z transform function?
Z transform function:
Num: 1, 2, 1
Den: 1, -1.99826, 0.99826
would this be correct?
Difference Equation
[n]−1.99826 [n−1]+0.99826 y[n−2]=1 [n]+2 y[n−1]+1 y[n−2]

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