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Solve the equation

3log⁡(x2)−1=4×3log⁡(x)−9

The left hand side

3log⁡(x2)−1

can be expressed as

32log⁡(x)3

Again, working on the left hand side, this can be further expressed as

[3log⁡(x)]23

making the whole equation a quadratic in disguise! (Let u=3log⁡(x))


Give the (positive) difference between the solutions.