For how many positive integers $x$ is $x^2 + 4x + 4$ between 10 and 50?
Question:
For how many positive integers $x$ is $x^2 + 4x + 4$ between 10 and 50?
Answer:
Let's think step by step.

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4
For how many positive integers $x$ is $x^2 + 4x + 4$ between 10 and 50?
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