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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 81a^2+324a-1296 ≤0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        81 * a ^ 2 + 324 * a - 1296 ≤0         (1)

---

    From inequality(1)：
         -6.472136 ≤ a ≤ 2.472136

---

    The final solution set is :
         -6.472136 ≤ a ≤ 2.472136

Your problem has not been solved here? Please take a look at the  hot problems ！