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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (1+10x)(1+2x)(1+0.2x)+20 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 1 + 10 * x ) * ( 1 + 2 * x ) * ( 1 + 0.2 * x ) + 20 >0         (1)

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    From inequality(1)：
         x ＞ -5.20792

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    The final solution set is :
         x ＞ -5.20792

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