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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -9 <-1:2x^2-x-3:2 <-3 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        -9 < -1 : 2 * x ^ 2 - x - 3 : 2         (1)
         -1 : 2 * x ^ 2 - x - 3 : 2 < -3         (2)

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    From inequality(1)：
         -5 < x < 3
    From inequality(2)：
         x < -3 或  x ＞ 1

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    From inequalities (1) and (2)
         -5 < x < -3 或  1 < x < 3     (3)

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    The final solution set is :
         -5 < x < -3 或  1 < x < 3

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