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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality abs(x*x+2*x) >0.5 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         abs ( x * x + 2 * x ) >0.5         (1)

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    From inequality(1)：
         x < -2.224745 或  -1.707107 < x < -0.292893 或  x ＞ 0.224745

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    The final solution set is :
         x < -2.224745 或  -1.707107 < x < -0.292893 或  x ＞ 0.224745

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