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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 13.881×t×t+2.976×t×t×t-1874.46344-424.212×t ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        13.881 × t × t + 2.976 × t × t × t - 1874.46344 - 424.212 × t ≥0         (1)

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    From inequality(1)：
         -12.133902 ≤ t ≤ -4.380487 或  t ≥ 11.850075

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    The final solution set is :
         -12.133902 ≤ t ≤ -4.380487 或  t ≥ 11.850075

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