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

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

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

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

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