2log x + 2log (x-2)= 3
Matematika
Ichalz
Pertanyaan
2log x + 2log (x-2)= 3
2 Jawaban
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1. Jawaban acim
²logx + ²log(x-2) = 3
²log(x(x-2)) = ²log8
x(x-2) = 8
x² - 2x - 8 = 0
(x + 2)(x - 4) = 0
pembuat nol yg positif adalah :
x - 4 = 0
x = 4
jadi, solusinya x = 4 -
2. Jawaban sherlymarsela
²logx + ²log(x-2) = 3
²log(x(x-2)) = ²log8
x(x-2) = 8
x² - 2x - 8 = 0
(x + 2)(x - 4) = 0
x - 4 = 0
x = 4
jadi, x = 4
semoga membantu:)