原式=(2x-1)^2(3x+2)-(2x-1)(3x+2)^2+x(2x-1)(3x+2)^2
=(2x-1)(3x+2)(2x-1-(3x+2)+x(3x+2))
=(6x^2+4x-3x-2)(2x-1-3x-2+x^2+2x)
=(6x^2+x-2)(x^2+x-3)
当x=3/2时
原式=(6*(9/4)+(3/2)-2)((9/4)+(3/2)-3)
=((54/4)+(6/4)-(8/4))((9/4)+(6/4)-(12/4))
=(52/4)(3/4)
=156/16
=9.75