X log (x+6) + x log (x-1)= 2+ x log 2
Matematika
robertocarlos766hi
Pertanyaan
X log (x+6) + x log (x-1)= 2+ x log 2
1 Jawaban
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1. Jawaban MrFaaiz
x log (x+6) + x log (x-1) - x log 2 = 2
x log ((x+6)(x-1) :2) = 2
(x +6)(x-1) : 2 = x²
(x² +5x - 6) = 2x²
-x² +5x - 6=0
(x-2)(-x+3) = 0
x = 2 atau x= 3