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Verified answer
Penyelesaian:|2x + 7 / x - 1| ≥ 1
dapat dikerjakan dengan mencari nilai positif dan negatif:
jika positif:
2x + 7 / x - 1 ≥ 1
2x + 7 ≥ x - 1
x ≥ -8
jika negatif:
2x + 7 / x - 1 ≤ -1
2x + 7 ≤ -x + 1
3x ≤ -6
x ≤ -2
HP:{-8 ≤ x ≤ -2}