Overview: 3 questions will be solved this time.Among them
           ☆3 inequalities

[ 1/3Inequality]
    Assignment:Find the solution set of inequality (2a+1)^2-8 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( 2 * a + 1 ) ^ 2 - 8 >0         (1)

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    From inequality(1)：
         a < -1.914214 或  a ＞ 0.914214

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    The final solution set is :
         a < -1.914214 或  a ＞ 0.914214
[ 2/3Inequality]
    Assignment:Find the solution set of inequality 1+2a+1+2 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        1 + 2 * a + 1 + 2 >0         (1)

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    From inequality(1)：
         a ＞ -2

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    The final solution set is :
         a ＞ -2
[ 3/3Inequality]
    Assignment:Find the solution set of inequality 1-2a-1+2 >0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        1 - 2 * a - 1 + 2 >0         (1)

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    From inequality(1)：
         a < 1

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    The final solution set is :
         a < 1

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