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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality abs(x^2-3x-4)     Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         abs ( x ^ 2 - 3 * x - 4 ) < x - 1         (1)

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    From inequality(1)：
         3.44949 < x < 4.645751

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    The final solution set is :
         3.44949 < x < 4.645751

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