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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 117*a*a+261*a+18 <198.76*a*a+70*a+19.36 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        117 * a * a + 261 * a + 18 <198.76 * a * a + 70 * a + 19.36         (1)

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    From inequality(1)：
         a < 0.007142 或  a ＞ 2.328963

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    The final solution set is :
         a < 0.007142 或  a ＞ 2.328963

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