tolong dijawab plis.yang jenius mtk. besok dikumpulin

5) 3x^2 - 10x - 8 ≤ 0
(3x + 2)(x - 4) ≤ 0
x = -2/3 atau x = 4
Garis bilangan
+++ (-2/3) --- (4) +++
-2/3 ≤ x ≤ 4

6) 2x^2 - 9x + 7 < 0
(2x - 7)(x - 1) < 0
x = 7/2 atau x = 1
Garis bilangan
+++ (1) --- (7/2) +++
1 < x < 7/2