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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -64.9294×n×n+0.972×n×n×n+1700.3613+63.402×n ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -64.9294 × n × n + 0.972 × n × n × n + 1700.3613 + 63.402 × n ≥0         (1)

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    From inequality(1)：
         -4.516464 ≤ n ≤ 5.923025 或  n ≥ 65.393234

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    The final solution set is :
         -4.516464 ≤ n ≤ 5.923025 或  n ≥ 65.393234

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