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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -6 ≤x^2-x-6 <6 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        -6 ≤ x ^ 2 - x - 6         (1)
         x ^ 2 - x - 6 <6         (2)

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    From inequality(1)：
         x ≤ 0 或  x ≥ 1
    From inequality(2)：
         -3 < x < 4

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    From inequalities (1) and (2)
         -3 < x ≤ 0 或  1 ≤ x < 4    (3)

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    The final solution set is :
         -3 < x ≤ 0 或  1 ≤ x < 4

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