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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (1-x)^5(2x+1)^2(x+4)^3 >= 0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 1 - x ) ^ 5 * ( 2 * x + 1 ) ^ 2 * ( x + 4 ) ^ 3 >= 0         (1)

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    From inequality(1)：
         -4 ≤ x ≤ -1/2 或  -1/2 ≤ x ≤ -1/2 或  -1/2 ≤ x ≤ 1

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    The final solution set is :
         -4 ≤ x ≤ -1/2 或  -1/2 ≤ x ≤ -1/2 或  -1/2 ≤ x ≤ 1

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