Overview: 2 questions will be solved this time.Among them
           ☆2 inequalities

[ 1/2Inequality]
    Assignment:Find the solution set of inequality 680-30（25/（1+2x）+1+x） ≤380 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
        680 - 30 * ( 25 / ( 1 + 2 * x ) + 1 + x ) ≤380         (1)
        From the definition field of divisor
         1 + 2 * x ≠ 0        (2 )

---

    From inequality(1)：
         -0.5 ≤ x ≤ 1.077856 或  x ≥ 7.422144
    From inequality(2)：
         x < -1/2 或  x ＞ -1/2

---

    From inequalities (1) and (2)
         -1/2 < x ≤ 1.077856 或  x ≥ 7.422144    (3)

---

    The final solution set is :
         -1/2 < x ≤ 1.077856 或  x ≥ 7.422144
[ 2/2Inequality]
    Assignment:Find the solution set of inequality 2     Question type: Inequality
    Solution:
    The inequality can be reduced to 2 inequalities：
        2 < x         (1)
         x ≤5         (2)

---

    From inequality(1)：
         x ＞ 2
    From inequality(2)：
         x ≤ 5

---

    From inequalities (1) and (2)
         2 < x ≤ 5     (3)

---

    The final solution set is :
         2 < x ≤ 5

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

Return