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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality -3     Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        -3 < a ^ 2 - 5 * a         (1)
         a ^ 2 - 5 * a <3         (2)

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    From inequality(1)：
         a < 0.697224 或  a ＞ 4.302776
    From inequality(2)：
         -0.541381 < a < 5.541381

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    From inequalities (1) and (2)
         -0.541381 < a < 0.697224 或  4.302776 < a < 5.541381     (3)

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    The final solution set is :
         -0.541381 < a < 0.697224 或  4.302776 < a < 5.541381

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