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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -9.172x^2+56.66x-1.8206 <85 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -9.172 * x ^ 2 + 56.66 * x - 1.8206 <85         (1)

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    From inequality(1)：
         x < 2.815736 或  x ＞ 3.361761

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    The final solution set is :
         x < 2.815736 或  x ＞ 3.361761

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