Let $p,$ $q,$ $r$ be the roots of $x^3 - x^2 + x - 2 = 0.$  Find $p^3 + q^3 + r^3.$
Question:
Let $p,$ $q,$ $r$ be the roots of $x^3 - x^2 + x - 2 = 0.$  Find $p^3 + q^3 + r^3.$
Answer:
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Let $p,$ $q,$ $r$ be the roots of $x^3 - x^2 + x - 2 = 0.$  Find $p^3 + q^3 + r^3.$
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