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

[ 1/1Inequality]
    Assignment:Find the solution set of inequality (x^2-x-2)*(x^2-2x-8) <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         ( x ^ 2 - x - 2 ) * ( x ^ 2 - 2 * x - 8 ) <0         (1)

---

    From inequality(1)：
         -2 < x < -1 或  2 < x < 4

---

    The final solution set is :
         -2 < x < -1 或  2 < x < 4

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