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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 4875/((0.4+x)^2) <= 1.7 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        4875 / ( ( 0.4 + x ) ^ 2 ) <= 1.7         (1)
        From the definition field of divisor
         ( 0.4 + x ) ^ 2 ≠ 0        (2 )

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    From inequality(1)：
         x ≤ -53.950416 或  x ≥ 53.150416
    From inequality(2)：
         x < -2/5 或  x ＞ -2/5

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    From inequalities (1) and (2)
         x ≤ -53.950416 或  x ≥ 53.150416    (3)

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    The final solution set is :
         x ≤ -53.950416 或  x ≥ 53.150416

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