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Verified answer
Kelas 11 MatematikaBab Turunan
f(x) = 1/3 x³ - x² - 24x + 5
Turun
f' < 0
3 . 1/3 x² - 2x - 24 < 0
x² - 2x - 24 < 0
(x - 6) (x + 4) < 0
x - 6 < 0
x < 6
x + 4 > 0
x > -4
-4 < x
Interval
-4 < x < 6