3/x-5 kurang dari -5/x-3
Matematika
ecis1
Pertanyaan
3/x-5 kurang dari -5/x-3
1 Jawaban
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1. Jawaban bapakdr
3 / x-5 < -5 / x-3
3 / x-5 - {-5 / x-3} < 0
{3(x-3) + 5(x-5)} / (x-5)(x-3) < 0
(3x-9+5x-25) / (x-5)(x-3) < 0
(8x-34) / (x-5)(x-3) < 0
8x - 34 = 0
8x = 34
x = 34/8 = 4¼
x - 5 = 0
x = 5
x - 3 = 0
x = 3
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``````````3 ``````` 4¼ ```````5
x < 3 atau 4¼ < x < 5