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

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

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    From inequality(1)：
         0 ≤ x ≤ 4

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    The final solution set is :
         0 ≤ x ≤ 4

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