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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (-3x^2-4x-3)/(x+1)^2 >-2.75 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( -3 * x ^ 2 - 4 * x - 3 ) / ( x + 1 ) ^ 2 > -2.75         (1)
        From the definition field of divisor
         x + 1 ≠ 0        (2 )

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    From inequality(1)：
         0.171573 < x < √39236/√1155
    From inequality(2)：
         x < -1 或  x ＞ -1

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    From inequalities (1) and (2)
         0.171573 < x < √39236/√1155     (3)

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    The final solution set is :
         0.171573 < x < √39236/√1155

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