Find the sum of the real roots of $x^4 - 4x - 1 = 0.$
Question:
Find the sum of the real roots of $x^4 - 4x - 1 = 0.$
Answer:
Let's think step by step.

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\sqrt{2}
Find the sum of the real roots of $x^4 - 4x - 1 = 0.$
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