What is the smallest positive value of $m$ so that the equation $10x^2 - mx + 420 = 0$ has integral solutions?
Question:
What is the smallest positive value of $m$ so that the equation $10x^2 - mx + 420 = 0$ has integral solutions?
Answer:
Let's think step by step.

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What is the smallest positive value of $m$ so that the equation $10x^2 - mx + 420 = 0$ has integral solutions?
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