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

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

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    From inequality(1)：
         a < -√2 或  0 < a < √2

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    The final solution set is :
         a < -√2 或  0 < a < √2

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