³log² x -9 3log x-10=0

³log² x -9 ³logx-10=0

(³logx - 10) (³logx + 1) = 0

³logx = 10 ~ x=3^(10)=59049

³logx = -1 ~ x = 3^(-1) = 1/3

Misal 3 log x = p, maka

p²-9p-10 = 0
(p-10)(p+1)=0
p₁ = 10
p₂ = -1

(1)
p₁=3log x
10=3log x
x = 3¹⁰ = 59049

(2)
p₂ = 3logx
-1= 3logx
x = 3⁻¹ = 1/3

HP = {1/3,59049)

maaf kalo salah :)