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

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

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    From inequality(1)：
         x ≤ -1 或  1 ≤ x ≤ 2

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

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