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

[ 1/2Inequality]
    Assignment:Find the solution set of inequality m*m+5*m+6 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         m * m + 5 * m + 6 >0         (1)

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    From inequality(1)：
         m < -3 或  m ＞ -2

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    The final solution set is :
         m < -3 或  m ＞ -2
[ 2/2Inequality]
    Assignment:Find the solution set of inequality (m*m-m-6)/(m+3) <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( m * m - m - 6 ) / ( m + 3 ) <0         (1)
        From the definition field of divisor
         x + 3 ≠ 0        (2 )

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    From inequality(1)：
         m < -3 或  -2 < m < 3
    From inequality(2)：
         m < -3 或  m ＞ -3

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    From inequalities (1) and (2)
         m < -3 或  -2 < m < 3     (3)

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    The final solution set is :
         m < -3 或  -2 < m < 3

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