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

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

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    From inequality(1)：
         -2.414214 < x < 0.414214

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    The final solution set is :
         -2.414214 < x < 0.414214

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