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

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

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    From inequality(1)：
         x ≤ 0 或  0 ≤ x ≤ 0 或  0 ≤ x ≤ 1.793282

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    The final solution set is :
         x ≤ 0 或  0 ≤ x ≤ 0 或  0 ≤ x ≤ 1.793282

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