X² + x - 1
------------ ≤ 1
x + 3
------------ ≤ 1
x + 3
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------------ - 1 ≤ 0
x + 3
x² + x - 1 x + 3
----------- - -------- ≤ 0
x + 3. x + 3
x² - 4
------- ≤ 0
x + 3
(x + 2)(x - 2)
----------------- ≤ 0
x + 3
buat garis bilangan
x = -3 , x = - 2, x = 2
tentukan hp
x < - 3 atau -2 ≤ x ≤ 2