If two of the roots of \[2x^3 + 8x^2 - 120x + k = 0\]are equal, find the value of $k,$ given that $k$ is positive.
Question:
If two of the roots of \[2x^3 + 8x^2 - 120x + k = 0\]are equal, find the value of $k,$ given that $k$ is positive.
Answer:
Let's think step by step.

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\tfrac{6400}{27}
If two of the roots of \[2x^3 + 8x^2 - 120x + k = 0\]are equal, find the value of $k,$ given that $k$ is positive.
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