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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality （x^2-x^3+2x）（x^2-1）（-x+4x-8） ≤0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( x ^ 2 - x ^ 3 + 2 * x ) * ( x ^ 2 - 1 ) * ( -x + 4 * x - 8 ) ≤0         (1)

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    From inequality(1)：
         x ≤ -1 或  -1 ≤ x ≤ -1 或  -1 ≤ x ≤ 0 或  1 ≤ x ≤ 2 或  x ≥ 8/3

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    The final solution set is :
         x ≤ -1 或  -1 ≤ x ≤ -1 或  -1 ≤ x ≤ 0 或  1 ≤ x ≤ 2 或  x ≥ 8/3

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