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Materi : Program LinearBahasan : Pertidaksamaan Linear
Jawaban : HP = {x | - 7/3 < x < 2. x ∈ R}
Langkah - langkah :
3x² + x - 14 < 0
Faktorisasi,
(3x + 7) (x - 2) < 0
x = - 7/3 atau x = 2
Garis bilangan dan intervalnya :
++++ (- 7/3) ----- (2) ++++
Karena diminta x < 0 (negatif), maka,
HP = {x | - 7/3 < x < 2. x ∈ R}