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i)
3x - 5 < 2x + 1 maka
3x - 2x < 5 + 1
x < 6
ii)
2x + 1 ≤ x² - 7x + 15
x² - 9x + 14 ≥ 0
(x - 2)(x - 7)
x ≤ 2 atau x ≥ 7
Irisan dari i) dan ii)
x ≤ 2
HP = {x ≤ 2}