tolong gannn penting

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|2x + 1| ≥ |x - 3|
(2x + 1)² - (x - 3)² ≥ 0
(3x - 2)(x + 4) ≥ 0
x ≥ 2/3 atau x ≤ -4

HP = {x| x ≤ -4 atau x ≥ 2/3 , x e R}

•
3|x + 1| ≤ |x - 2|
|3x + 3| ≤ |x - 2|
(3x + 3)² - (x - 2)² ≤ 0
(4x + 1)(2x + 5) ≤ 0
-5/2 ≤ x ≤ -1/4

HP = {x| -5/2 ≤ x ≤ -1/4 , x e R}