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https://www.meritnation.com/ask-answer/question/if-one-zero-of-polynomial-3x2-8x-2k-1is-seven-times-the/polynomials/10307083
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https://www.meritnation.com/ask-answer/question/if-one-zero-of-polynomial-3x2-8x-2k-1is-seven-times-the/polynomials/10307083
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