log x²=log4+log(x+3)

Kelas 10
Matematika
Bab 1 - Pangkat Akar dan Logaritma

penyelesaian
log x² = log 4 + log (x+3)
log x² = log (4 (x + 3))
log x² = log (4x + 12)
x² = 4x + 12
x² - 4x - 12 = 0
(x - 6) (x + 2) = 0
x = 6
x = -2

hp = {-2,6}