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1、实用标准文案单项式乘以单项式一、计算:(1) (2) (3)4y(-2xy3);(4) (5) (6)(7) (8)(9) 10)(1) (2)(3) (4)(5) (6)(7) (8)(1) (2)(3) (4)(5) (6)单项式乘多项式(1)(2xy23xy)2xy; (2)x(2x3x22);(3)2ab(ab3ab21); (4)(an1)ab. (5)-10mn(2m2n-3mn2). (6)(-4ax)2(5a2-3ax2).(7)(3x2y-2xy2)(-3x3y2)2. (8)7a(2ab2-3b). (9)x(x2-1)+2x2(x+1)-3x(2x-5).8.(a2b)(
2、b2a+) (9).(2a2b)3(3b24a+6)102ab(5ab+3a2b) 11. 12计算:2x(x2x+3) 13(4a3+12a2b7a3b3)(4a2)14计算:xy2(3x2yxy2+y) 15(2ab)(3a22ab4b2)1 2 4 67 8(1)(a)8(a5); (2)(xy)7(yx)6;(3)(m4)3(m)7; (4)x7(x5x3)21计算:(1)(a2b4)(ab2)(10ab); (2)32a4b5c(2ab)3(ac);(3)(n37mn2n5)n2; (4)(12x4y68x2y416x3y5)4x2y3. 多项式与多项式相乘 一、计算1、(x2)(x
3、6) 2、(x5)(x6) 3、(x5)(x7) 4、(x+2)(x3)5、(x2)(x6) 6、(x5y)(x7y); 7、(x3y)(x+7y) 8、(2xy)(3x2y); 9、(3x1)(2x+1) 10、(2x3)(3x4); 11、(3x+2y)(3x4y) 12、(-8x+5) (5x- 4),;13、(4xy)(5x2y) 14、(-2a3b)(4a2b) 15、(2x3y)(4x26xy9y2); 16、(a22)(a42a24) 17、(3x22x1)(2x23x1) 18、(y1)(y2)(y3) 19、(a4)(a+3) (2 a+1)(a3) 20、(x+2)(x3)
4、x(x2)21(x3)(x2一6x+1)x(x2一x3) 22(a2b)2(ab)(ab)2(a3b)(ab), (1)(2x3y)(3x2y) (2) (3x1)(4x5)(3)(x3)(x4)(x1)(x2) (4)(3x2y)(2x3y)(x3y)(3x4y) (5)(x2)(x3)(x6)(x1) (1)(m1)(2m1); (2)(2a3b)(3a2b); (3)(2x3y)(4x26xy9y2); (1)(ab)(ab22abb1); (2)3ab(a2bab2ab)ab2(2a23ab2a) (4)(2xy)(xy); (5)a(a3)(2a)(2a) 三、因式分解8、(1) (
5、2)(3) (4) (5)3x36x4; (6)4a3b210ab3c; (7)3ma36ma212ma; (8)6p(pq)4q(pq) (9)x4x3x; (10)x(xy)y(yx);(11)6x(ab)4y(ba); (12)(a2ab)c(ab); (13)4q(1p)32(p1)2.(1) (2)(3) (4)(5)4x2y2; (6)16a2b2;(7)100x29y2; (8)(x2y)2(xy)2; (9)16b4. (10)a39a;(11)3m(2xy)23mn2; (12)(ab)b24(ab)(1) (2)(3) (4)(5)3p26pq; (6)2x2+8x+8(7
6、)2am28a; (8)4x3+4x2y+xy2(1) (2)(3) (4)(5) (6)32. 24x312x228x 33. 6(mn)312(nm)2 34. 3(ab)26(ba)35. 18(ab)312b(ba)2 36. (2ab)(2a3b)3a(2ab) 37.(x26x)2(2x4)2 38. 9(mn)2(mn)2 39. (2x3y)21 40. 9(ab)216(ab)2 41. (xy)216(xy)2 42. 16x481y4 43. 3ax23ay2 44. 2x38x 45. 7x263 46. (a2b2)24a2b247. (mn)26(mn)9 48.
7、(3)(ab)22(ab)1; 49. 4xy24x2yy350. x24y24xy 51. ; 52. ; 53. (a24)216a2 54. -4x3+16x2-26x 56. a2(x-2a)2-a(2a-x)357. 56x3yz+14x2y2z21xy2z2 58. mn(mn)m(nm) 59. -(2a-b)2+4(a -b)260. 4xy(x2-4y2) 61. -3ma3+6ma2-12ma 62. a2(x-y)+b2(y-x)63. 64. 65. 2x2n-4xn66. 67. 68.; 69. ax2y2+2axy+2a 70. (x2-6x)2+18(x2-6x)+81 71. 729x2y24y4 73. 74.75. 76. 77. 78. 79. 精彩文档