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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality （4x＾2-20x+8）/（x＾2-5x+4） ≥3 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 4 * x ^ 2 - 20 * x + 8 ) / ( x ^ 2 - 5 * x + 4 ) ≥3         (1)
        From the definition field of divisor
         x ^ 2 - 5 * x + 4 ≠ 0        (2 )

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    From inequality(1)：
         x ≤ -0.701562 或  1 ≤ x ≤ 4 或  x ≥ 5.701562
    From inequality(2)：
         x < 1 或  1 < x < 4 或  x ＞ 4

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    From inequalities (1) and (2)
         x ≤ -0.701562 或  1 < x < 4 或  x ≥ 5.701562    (3)

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    The final solution set is :
         x ≤ -0.701562 或  1 < x < 4 或  x ≥ 5.701562

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