2log(x-3)+2log (x+4)=3
Matematika
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Pertanyaan
2log(x-3)+2log (x+4)=3
1 Jawaban
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1. Jawaban eripane05
Logaritma
2log(x-3)+2log (x+4)=3
2log (x-3)(x+4) = 2log 8
x^2 + x - 12= 8
x^2 + x - 20 = 0
(x+5)(x-4) = 0
x = -5 ( TM)
x = 4 ( Memenuhi )
Hp = {4}