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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -200x^2+8800x-87000+200x-5800 ≥7200 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -200 * x ^ 2 + 8800 * x - 87000 + 200 * x - 5800 ≥7200         (1)

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    From inequality(1)：
         20 ≤ x ≤ 25

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    The final solution set is :
         20 ≤ x ≤ 25

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