Question

qual é a resolucao de Log x (x+6)=2

Answer 1

Ola Rayan

logx(x + 6) = 2

log(x + 6)/log(x) = 2

log(x + 6) = 2log(x) 

log(x + 6) = log(x²)

x² = x + 6

x² - x - 6 = 0

delta
d² = 1 + 24 = 25
d = 5

x1 = (1 + 5)/2 = 6/2 = 3
x2 = (1 - 5)/2 = -4/2 = -2 

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