Question

3log x+1 = 1+ 9log x-1
tolong dibantu yaa

Answer 1

³log(x+1) = 1 + ⁹log (x-1)
³log(x+1) = ³log 3 +   ³log (x-1)^(1/2)
(x+1) = 3 (x-1)^(1/2)
kuadratkan kedua ruas
x² + 2x + 1 = 9 (x-1)
x² - 7x + 10 = 0
x = 5 atau x = 2