文档介绍：计算题
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(1)(-2x-3y)2-(2x-3y)2; (2)5a3b∙-3b2+-6ab2∙-ab-ab3∙(-4a2)
(3)(25x2+15x3y-20x4)÷(-5x2); (4)-14x2y-12x3y2-16x4y3÷-12x2y
(5)a2b-2ab2-b3÷b-(a+b)(a-b); (6)(2a+3b)2-22a+3ba+2b+(a+2b)2
(7)[x-y2+x+yx-y]÷2x; (8)x-y7÷(y-x)6+-x-y3÷(x+y)2
(9)4ab3-8a2b2÷4ab+(2a+b)(2a-b); (10)(a+b+c)(a-b-c)
(11)[2x-y2+2x+y2x-y+4xy]÷2x;
(12)3x2+4x+4-x-33x+4 (13)2x-8x-5-(2x-1)(x+2);
(14)-12m3n-13m2n2+18m3n÷-14mn; (15)[x-y2+x+yx-y]÷x
(16)(-2a2b)3+8(a2)2∙(-a)2∙(-b)3; (17)3x-yy+3x-(4x-3y)(4x+3y)
(18)(-)÷(-); (19)-2a2bc2∙12a∙bc3-(-abc)3∙(-abc)2
(20)2x-1x+2-x-22-(x+2)2; (21)(15axn+2-9a2x2n+6a3x3n)÷3axn
(22)(-4a3+12a2b-7a3b2)÷(-4a2); (23)(-5a6)2+(-3a3)3∙-a3-(-4a6)2
(24)-2xy∙x2-3y2-4xy(2x2+y2); (25)(12a3b2c3-6a2b+3ab)÷(-3ab)
(26)2a+b5-4a+b4+2-a-b3÷[2a+b3];
(27)3(a2)4∙(a3)3-(-a)∙(a4)4+(-2a4)2∙(-a)3∙(a2)3;
(28)(2x-3y-1)(2x+3y+1) (29)(-3ab2+2a2b)(3ab2+2a2b)
(30)a-ba+b+b-cb+c+(c-a)(c+a);
(31)2(3+1)(32+1)(34+1)(38+1)(316+1)
(32)(2x+3)2-(3x+2)2; (33)(-2a)6--2a32-[-2a2]3
(34)x∙(-x3)8∙(-x4)3; (35)(-2y3)2+(-4y2)3-[-2y2∙-3y22]
(36)(3x+2)2∙(3x-2)2; (37)(x+2y-5)(x-2y+5)
(38)2a+3b3a-2b-(-2a-3b)2; (39)--x23∙-x22-x(-x3)3;
(40)2x+y2x-y+(x+y)2-2(2x2-xy)
(41)(x-y)3∙(x+y)2∙[x-y