Y' = 2(3x^3 - 5x^2 + 6)(9x^2 - 10x)
= 2(27x^5 - 45x^4 + 54x^3 - 30x^4 + 50x^3 - 60x^2)
= 54x^5 - 150x^4 + 104x^3 - 60x^2