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maka
3log(2x²-19x+33)=1 ~ 3^1 = 2x²-19x+33
0 = 2x²-19x+30
0 = (2x-15)(x-2)
2x-15=0 atau x-2=0
x=7,5 atau x=2
maka 2.x2.x2 = 2. 7,5. 2 = 30