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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (4（2x+5)-x^2)/(8x+20) >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 4 * ( 2 * x + 5 ) - x ^ 2 ) / ( 8 * x + 20 ) >0         (1)
        From the definition field of divisor
         8 * x + 20 ≠ 0        (2 )

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    From inequality(1)：
         x < -2.5 或  -2 < x < 10
    From inequality(2)：
         x < -5/2 或  x ＞ -5/2

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    From inequalities (1) and (2)
         x < -2.5 或  -2 < x < 10     (3)

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    The final solution set is :
         x < -2.5 或  -2 < x < 10

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