(2x-1)(3x-1)(2x-3)(3x+2)+10
=(6x^2-5x+1)(6x^2-5x-6)+10
=(6x^2-5x)^2-5(6x^2-5x)+4
=36x^4-60x^3+25x^2-30x^2+25x+4
=36x^4-60x^3-5x^2+4