7log (x+1) + 7log (x-3) = 1
Matematika
Hannannuryasin
Pertanyaan
7log (x+1) + 7log (x-3) = 1
1 Jawaban
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1. Jawaban ellioral
7log(x+1) + 7log(x-3) = 7log7
(x+1)+(x-3) = 7
2x-2 = 7
2x = 9
x = 9/2