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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 15x^2-8400-392x ≤0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        15 * x ^ 2 - 8400 - 392 * x ≤0         (1)

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    From inequality(1)：
         -13.965495 ≤ x ≤ 40.098829

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    The final solution set is :
         -13.965495 ≤ x ≤ 40.098829

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