Hasil dari 3^log(x^2+1) - 3^log(5x+5) =0
Matematika
macaroniyy
Pertanyaan
Hasil dari 3^log(x^2+1) - 3^log(5x+5) =0
1 Jawaban
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1. Jawaban novi101121novi
³log (x²+1) - ³log (5x+5) =0
x² + 1 - 5x + 5 = 0
x² - 5x + 6 = 0
(x-2) (x-3) = 0
x = 2 x = 3
Syarat :
x² + 1 > 0
(x+1) (x+1) > 0
x = -1 x=-1
5x+5 >0
5x > -5
x > -5/5
x > -1
Hp = { 2,3)
semoga membantu :)