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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 90000*2+(300√2-20x)^2 <450^2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        90000 * 2 + ( 300 * √ 2 - 20 * x ) ^ 2 <450 ^ 2         (1)

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    From inequality(1)：
         13.713203 < x < 28.713203

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    The final solution set is :
         13.713203 < x < 28.713203

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