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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality ((-2/27x^3+4/9x^2+13/9x-56/27)/2)^2+((-1/3x^2+4/3x-19/3)/3)^3 <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( ( -2 / 27 * x ^ 3 + 4 / 9 * x ^ 2 + 13 / 9 * x - 56 / 27 ) / 2 ) ^ 2 + ( ( -1 / 3 * x ^ 2 + 4 / 3 * x - 19 / 3 ) / 3 ) ^ 3 <0         (1)

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    From inequality(1)：
         x < 15/4 或  x ＞ 15/4

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    The final solution set is :
         x < 15/4 或  x ＞ 15/4

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