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-²log (x²-3) + ²log x = ²log (2)⁻¹
-²log (x²-3) + ²log x = ²log (2)⁻¹
²log x - ²log (x²-3) = ²log (1/2)
x/(x²-3) = 1/2
2x = x²-3
0 = x²-2x-3
0 = (x-3)(x+1)
x = 3 atau x = -1