Sama jalannya tolong bantu ya 1. 2. 3.nilai mutlak dari
triskaamanda
1. 2x-1 per x ≤ 1 2x-1 per x - 1 ≤ 0 (dikalikan x) 2x-1-x per x ≤ 0 x-1 ≤ 0 x ≤ 1 3. |x-2| ≤ 2|x+3| |x-2| ≤ |2(x+3)| -> (x-2)² ≤ (2(x+3))² (x-2)²-(2(x+3))² ≤ 0 ((x-2)+2(x+3))((x-2)-2(x+3)) ≤ 0 (x-2+2x+6)(x-2-2x-6) ≤ 0 (3x+4)(-x-8) ≤ 0 x = -4/3 atau x = -8 Hp = x ≥ -4/3 atau x ≤ 8
2x-1 per x - 1 ≤ 0 (dikalikan x)
2x-1-x per x ≤ 0
x-1 ≤ 0
x ≤ 1
3. |x-2| ≤ 2|x+3|
|x-2| ≤ |2(x+3)| -> (x-2)² ≤ (2(x+3))²
(x-2)²-(2(x+3))² ≤ 0
((x-2)+2(x+3))((x-2)-2(x+3)) ≤ 0
(x-2+2x+6)(x-2-2x-6) ≤ 0
(3x+4)(-x-8) ≤ 0
x = -4/3 atau x = -8
Hp = x ≥ -4/3 atau x ≤ 8
Maaf kalau salah
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