Pertidaksamaan Nilai Mutlak
|2x – 3| <= |x + 10|
Jawaban Terkonfirmasi
Bab Nilai Mutlak
Matematika SMA Kelas X
|2x – 3| ≤ |x + 10|
(2x – 3)² ≤ (x + 10)²
(2x – 3)² – (x + 10)² ≤ 0
(2x – 3 + x + 10) (2x – 3 – x – 10) ≤ 0
(3x + 7) (x – 13) ≤ 0
3x + 7 ≥ 0
3x ≥ -7
x ≥ -7/3
-7/3 ≤ x
x – 13 ≤ 0
x ≤ 13
HP = { x | -7/3 ≤ x ≤ 13, x ∈ bilangan real }