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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality X2+6x <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         X * 2 + 6 * X <0         (1)

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    From inequality(1)：
         X < 0

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    The final solution set is :
         X < 0

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