" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
7/3 1 - 3x
7 1/3 -x
7x3 -x
21 -x
x -21
Jawab :
|3x+7/3| ≤ 1
(3x+7/3)² ≤ 1²
9x² + 14x + 49/9 ≤ 1
9x² + 14x + 49/9-1 ≤ 0
9x² + 14x + 40/9 ≤ 0
(3x + 4/3) (3x + 10/3) ≤ 0
penyamaan nol :
(3x + 4/3) (3x + 10/3) = 0
3x + 4/3 =0 3x + 10/3 =0
3x = -4/3 3x = -10/3
x = -4 x = -10
himpunan penyelesaiannya => gambar grafik
dan jawabannya :
HP = {x|x ≤ -10}