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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality （x+1）（x+1）（3x-1）（5+6x） ≤0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( x + 1 ) * ( x + 1 ) * ( 3 * x - 1 ) * ( 5 + 6 * x ) ≤0         (1)

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    From inequality(1)：
         -5/6 ≤ x ≤ 1/3

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    The final solution set is :
         -5/6 ≤ x ≤ 1/3

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