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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 3x-5x^2/（10x-3） <2/5 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        3 * x - 5 * x ^ 2 / ( 10 * x - 3 ) <2 / 5         (1)
        From the definition field of divisor
         10 * x - 3 ≠ 0        (2 )

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    From inequality(1)：
         x < 3/25 或  0.3 < x < 2/5
    From inequality(2)：
         x < 3/10 或  x ＞ 3/10

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    From inequalities (1) and (2)
         x < 3/25 或  0.3 < x < 2/5     (3)

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    The final solution set is :
         x < 3/25 或  0.3 < x < 2/5

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