计算[-(-2x^2y)^3]^2·(-3x^3y^2)

（1） [-(-2x^2 y)^3]^2·(-3x^3 y^2)
=[-(-8x^6y^3)]^2*(-3x^3y^2)
=64x^12y^6*(-3x^3y^2)
=-192x^15y^8.
（2）[x^(2n-1)]^2·(x^2)^(3-2n)·[-x^(2n-3)]
=x^(4n-2)*x^(6-4n)*[-x^(2n-3)]
=-x^(4n-2+6-4n+2n-3)
=-x^(2n+1).