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

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

---

    From inequality(1)：
         -5.828427 ≤ a ≤ -0.171573

---

    The final solution set is :
         -5.828427 ≤ a ≤ -0.171573

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