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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 0 ≤x²＋8x ≤8 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        0 ≤ x ^ 2 + 8 * x         (1)
         x ^ 2 + 8 * x ≤8         (2)

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    From inequality(1)：
         x ≤ -8 或  x ≥ 0
    From inequality(2)：
         -8.898979 ≤ x ≤ 0.898979

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    From inequalities (1) and (2)
         -8.898979 ≤ x ≤ -8 或  0 ≤ x ≤ 0.898979    (3)

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    The final solution set is :
         -8.898979 ≤ x ≤ -8 或  0 ≤ x ≤ 0.898979

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