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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality a+5     Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         a + 5 < sqrt ( a ^ 2 + 6 * a + 1 )         (1)
        From the definition field of √
         x ^ 2 + 6 * x + 1 ≥ 0        (2 )

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    From inequality(1)：
        The solution set is empty, that is, within the range of real numbers, the inequality will never be established!
    From inequality(2)：
         a ≤ -5.828427 或  a ≥ -0.171573

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    The final solution set is :
        The solution set is empty,that is, the inequality will never be estatlished within the real number range.

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