Overview: 1 questions will be solved this time.Among them
           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -43.833×n×n-0.25×n×n×n+1978.76124-654.366×n ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -43.833 × n × n - 0.25 × n × n × n + 1978.76124 - 654.366 × n ≥0         (1)

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    From inequality(1)：
         n ≤ -158.503331 或  -19.402381 ≤ n ≤ 2.573712

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    The final solution set is :
         n ≤ -158.503331 或  -19.402381 ≤ n ≤ 2.573712

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