Himpunan penyelesaian ^2Log (x^2-4x)-5

²log (x²-4x) = 5
²log (x² - 4x) = ²log 2^5
x² - 4x = 2^5
x² - 4x = 32
x² - 4x - 32 = 0
(x - 8)(x + 4) = 0
x = 8 atau x = -4