Question

Himpunan penyelesaian dari 4 log (x2-4) = 4 log 5

Answer 1

Verified answer

⁴log(x² - 4) = ⁴log 5
*karena basisnya sama bisa dicoret log-nya*

x² - 4 = 5
x² = 9
x = ± √9
x = ± 3

x = 3
atau
x = -3

Answer 2

4 log (x2-4)= 4log 5
x2-4 = 5
x2=9
x=3