计算:
(1)(-3a2b3)2(-a3b2)5;
(2);
(3)(-3ab)(2a2b+ab-1);
(4)(6ab3+2ab2-3ab+1)(-2a2b);
(5)(x+y)(x2-2x-3);
(6)anb2[3bn-1-2abn+1+(-1)2003];
(7)-(-x)2(-2x2y)3+2x2(xy4-1);
(8)(3x-y)(y+3x)-(4x-3y)(4x+3y).