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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality （3x+2）×（5x+3）^2×（3x-1） ≤0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 3 * x + 2 ) × ( 5 * x + 3 ) ^ 2 × ( 3 * x - 1 ) ≤0         (1)

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    From inequality(1)：
         -2/3 ≤ x ≤ -3/5 或  -3/5 ≤ x ≤ -3/5 或  -3/5 ≤ x ≤ 1/3

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    The final solution set is :
         -2/3 ≤ x ≤ -3/5 或  -3/5 ≤ x ≤ -3/5 或  -3/5 ≤ x ≤ 1/3

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