If $x$ is an integer, what is the smallest value of the expression $x^2 - 6x +13$?
Question:
If $x$ is an integer, what is the smallest value of the expression $x^2 - 6x +13$?
Answer:
Let's think step by step.

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If $x$ is an integer, what is the smallest value of the expression $x^2 - 6x +13$?
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