|12x+1|<|2x-3| Dibantuu kuyy
Matematika
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Pertanyaan
|12x+1|<|2x-3|
Dibantuu kuyy
Dibantuu kuyy
1 Jawaban
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1. Jawaban Anonyme
Bab Nilai Mutlak
Matematika SMA Kelas X
|12x + 1| < |2x - 3|
(12x + 1)² < (2x - 3)²
(12x + 1)² - (2x - 3)² < 0
(12x + 1 + 2x - 3) (12x + 1 - 2x + 3) < 0
(14x - 2) (12x + 4) < 0
12x + 4 > 0
12x > -4
x > -4/12
x > -1/3
-1/3 < x
14x - 2 < 0
14x < 2
x < 2/14
x < 1/7
-1/3 < x < 1/7