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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 2x^2+2x-4 ≤1/2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        2 * x ^ 2 + 2 * x - 4 ≤1 / 2         (1)

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    From inequality(1)：
         -2.081139 ≤ x ≤ 1.081139

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    The final solution set is :
         -2.081139 ≤ x ≤ 1.081139

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