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## Homework Statement

I want the simplify the following equation

## Homework Equations

[itex]\frac{x}{{p}^{2}}+\frac{n-x}{{(1-p)}^{2}}[/itex], where p=[itex]\frac{x}{n}[/itex]

## The Attempt at a Solution

I got this [itex]\frac{{n}^{2}}{x}-\frac{{n}^{2}}{n-x}[/itex], I don't think this is the right answer.

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