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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -67.144×n×n+0.968×n×n×n+1807.719444+79.3548×n ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -67.144 × n × n + 0.968 × n × n × n + 1807.719444 + 79.3548 × n ≥0         (1)

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    From inequality(1)：
         -4.5037 ≤ n ≤ 6.12066 或  n ≥ 67.746676

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    The final solution set is :
         -4.5037 ≤ n ≤ 6.12066 或  n ≥ 67.746676

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