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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -x^2-3x-4 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -x ^ 2 - 3 * x - 4 >0         (1)

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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!

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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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