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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality x^7-56x+56 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x ^ 7 - 56 * x + 56 >0         (1)

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    From inequality(1)：
         -2.087811 < x < 1.020596 或  x ＞ 1.683017

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    The final solution set is :
         -2.087811 < x < 1.020596 或  x ＞ 1.683017

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