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

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

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    From inequality(1)：
         y ＞ -1

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    The final solution set is :
         y ＞ -1

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