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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality －4a^2＋6a＋4 ≥0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        -4 * a ^ 2 + 6 * a + 4 ≥0         (1)

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    From inequality(1)：
         -1/2 ≤ a ≤ 2

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    The final solution set is :
         -1/2 ≤ a ≤ 2

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