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² log x(x-6)=4
x²-6x=2⁴
x²-6x=16
x²-6x-16=0
(x-8)(x+2)
x=8 ∨ x=-2
syarat
x>0
x-6>0
x>6
himpunan penyelesaian= {8}, karena yg memenuhi persyaratan hanya 8