The equation $x^3 - 9x^2 + 8x +2 = 0$ has three real roots $p$, $q$, $r$.  Find $\frac{1}{p^2} + \frac{1}{q^2} + \frac{1}{r^2}$.
Question:
The equation $x^3 - 9x^2 + 8x +2 = 0$ has three real roots $p$, $q$, $r$.  Find $\frac{1}{p^2} + \frac{1}{q^2} + \frac{1}{r^2}$.
Answer:
Let's think step by step.

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25
The equation $x^3 - 9x^2 + 8x +2 = 0$ has three real roots $p$, $q$, $r$.  Find $\frac{1}{p^2} + \frac{1}{q^2} + \frac{1}{r^2}$.
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