27 pangkat m-1=9 pangkat 4m+2
Matematika
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Pertanyaan
27 pangkat m-1=9 pangkat 4m+2
1 Jawaban
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1. Jawaban wilsonrubik123
27^m-1 = 9^4m+2
(3^3)^m-1 = (3^2)4m+2
3^3m-3 = 3^8m+4
3m-3 = 8m+4
-3-4 = 8m-3m
-7 = 5m
5m = -7
m = -7/5