Log x + log (x+1) = log 2
Jawaban Terkonfirmasi
Log x + log ( x + 1 ) = log 2
log x ( x + 1 ) = log 2
x² + x = 2
x² + x – 2 = 0
( x + 2 ) ( x – 1 ) = 0
x = -2 atau 1
Log x + log (x+1)
artinya log x.(x+1) = log 2
x² + x -2=0
(x+2)(x-1)
x= -2 atau x= 1
yang diambil yg positif x= 1