Overview: 2 questions will be solved this time.Among them
           ☆2 inequalities

[ 1/2Inequality]
    Assignment:Find the solution set of inequality x^2-7x+10 ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x ^ 2 - 7 * x + 10 ≥0         (1)

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    From inequality(1)：
         x ≤ 2 或  x ≥ 5

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    The final solution set is :
         x ≤ 2 或  x ≥ 5
[ 2/2Inequality]
    Assignment:Find the solution set of inequality x^2-9x+12 ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x ^ 2 - 9 * x + 12 ≥0         (1)

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    From inequality(1)：
         x ≤ 1.627719 或  x ≥ 7.372281

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    The final solution set is :
         x ≤ 1.627719 或  x ≥ 7.372281

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