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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality x^2-4x+4-4x^2-12x-20 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x ^ 2 - 4 * x + 4 - 4 * x ^ 2 - 12 * x - 20 >0         (1)

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    From inequality(1)：
         -4 < x < -4/3

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    The final solution set is :
         -4 < x < -4/3

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