1、(x21)(x3) (2x22x2)(2x3) (x3)(x1) (x3)(x6) (y4)(y3) (y4)(y3) y7y3 18a8b6(9a7b4) (ab)7(ab)3 (15x3y3)(5x2y2) 14x8y72x3y4 (32103)(8102) 5a3b7c36a2b4 (20a2b220a)5a (24a616a272a)8a (63xy35x3y)7xy (5a)3 (4b)3 (3b)3 (xy3)3(6x3)3 (ab)7 (2102)2 (5ab2)3(102)5 (y3)5 (bm)2 (b7)3(107)8 (y3)9 (bm)6 (a6)7a7xx4 x4x9
2、 s5s6 (7)(7)8(7)6 xnx9n+1 xmx6m+1 ()2()5()7 a2a8 x5x4 2 2 2 (3)(3)9(3)8 t4t7 a6a7 ()9 y7my6m-1 y7my2m-1 (x4)(2x1) 7a(2a2b) (4x9y)(3x) 5 1 (ab35ab)ab3 3x(3x3)x(x3)3x(2x1) 6 5 (2x1)(x7) (xy)(2x9y) (2x3y)(x2xyy2) (2xy)(4xy) (4a3)2 (ab)(3ab) (x21)(2x4) (x23x3)(x1) (x3)(x1) (x5)(x5) (y1)(y3) (y4)(y3) y8y
3、5 28a3b9(4a2b2) (pq)5(pq)3 (81x7y8)(9x6y7) 63x6y37x2y2 (18106)(6104) 3a3b9c29a2b2 (15a3b40a)(21a514a256a)7a (27xy21x3y2)3xy (3a)3 (6b)2 (5b)2 (xy2)3(3x4)3 (xy)3 (3104)3 (5ab2)2(109)5 (b9)9 (an)2 (y6)9(108)5 (a3)4 (xm)6 (a3)8a9x7x4 aa9 cc3 (8)(8)2(8)8 xnx8n-1 xnx2n-1 ()4()6 s8s2 a7a 6 6 6 (9)9(9)3(9)
4、7 y8y4 zz2 ()8()5 yny7n-1 ymy3m+1 5 5 5 (4x3)(6x9) 9a(2a3b) (5x3y)(7x) 2 1 (ab26ab)ab2 3x(x1)x(3x3)x(x1) 3 2 (3x5)(x5) (xy)(x9y) (2x3y)(x2xyy2) (4x8y)(x5y) (2a3)2 (4a5b)(ab) (3x25)(4x8) (x24x2)(4x2) (x3)(x3) (x6)(x1) (y4)(y2) (y4)(y2) y4 56a8b9(8a6b3) (ab)6(ab)2 (24x7y6)(6x2y4) 18x8y56x6y2 (10105)(5
5、6a8b4c34a6b2 (72a2b45a)9a (24a554a230a)6a (25xy20x2y3)5xy (10a)3 (6b)2 (2b)2 (xy5)4(6x2)3 (ab)8 (3102)3 (3ab2)2(103)5 (y2)5 (yn)4 (y3)7(104)2 (a8)3 (ym)5 (a9)9a2xx7 a4a8 cc6 (9)(9)5(9)8 xmx5m-1 x7mx8m+1 ()6()5 x8x5 t2t3 3 3 3 (5)(5)9(5)8 yy8 s7s5 ()6 ymy2m+1 y8ny7n-1 (x4)(9x5) 8a(4a3b) (6x2y)(3x) 6
6、1 (ab24ab)ab 3x(2x4)x(3x4)3x(x1) 5 6 (x6)(2x8) (3xy)(4xy) (x3y)(x22xyy2) (3xy)(xy) (a1)2 (ab)(a8b) (x22)(x7) (2x2x3)(x2) (x1)(x1) (x3)(x4) (y1)(y3) (y1)(y3) a6a5 12a6b6(3a3b2) (pq)2 (42x4y7)(6x3y2) 56x3y48x2y3 (12109)103) 5a8b9c24a5b4 (12a2b342a)6a (30a545a330a)5a (14x3y214xy2)(10a)2 (3b)3 (6b)2 (xy
7、5)3(3x3)3 (xy)7 (2103)2 (4ab3)2(109)9 (y5)6 (xm)2 (a8)8(109)6 (y4)9 (bn)6 (a8)5a5x8x3 b7b3 s5s9 (8)6(8)3 x8mx7m+1 xmx3m+1 ()9 a5a9 y7y 9 9 9 (9)3 a3a6 tt8 ()5 y4ny8n+1 x7mx3m+1 (x4)(3x2) 6a(3a6b) (9x9y)(8x) (ab36ab)ab2 2x(2x4)x(x1)x(x4) (x8)(x5) (xy)(4x3y) (xy)(x22xyy2) (xy)(4xy) (a2)2 (4ab)(2a4b) (
8、4x24)(x6) (x2x2)(4x3) (x4)(x3) (x6)(x1) (y2)(y1) (y1)(y3) b3b2 21a8b8(7a2b2) (bc)9(bc)2 (36x9y6)(9x6y4) 14x6y42x2y3 (30104)8a3b4c45a2b3 (56a2b272a)8a (20a536a320a)4a (54x3y281x2y3)9xy (8a)2 (2b)3 (4b)3 (xy4)2(2x4)2 (xy)9 (3103)3 (4ab3)2(106)4 (b6)5 (am)2 (y9)5(105)7 (x9)4 (bn)9 (a4)9a2xx2 aa5 s8s4 (
9、4)(4)3(4)9 x6nx3n+1 x5nx5n-1 ()7()4 x4x c5c 4 4 4 (10)5(10)9(10)4 t5t4 xx8 ()2 x8mx2m+1 x9mx6m-1 (x2)(3x2) 3a(5a8b) (8x5y)(9x) (ab22ab)ab2 4x(x2)3x(x4)x(4x4) (4x6)(4x7) (x5y)(xy) (xy)(x2xyy2) (4x5y)(x8y) (4a4)2 (3ab)(4a6b) (x21)(x8) (x2x3)(x1) (x1)(x2) (x3)(x5) (y4)(y3) (y1)(y2) y4 6a4b8(2a2b5) (x)3(x)2 (27x9y5)(3x5y3) 14x3y57x2y4 (24(36a8b4c22a7b2 (21a2b349a)7a (14a56a218a)2a (10xy235x2y2)(4a)2 (3b)3 (5b)2 (xy5)2(3x3)3 (xy)3 (4102)2 (2ab3)3(102)4 (y5)7 (am)8 (a4)5(107)4 (y8)6 (an)7 (a2)8a7x5x6 xx9 zz3 (4)9 x4mx3m-1 x9mx8m+1 ()6 x3x x8x (10)3(10)4 aa7 s6s9 ()5 x5nx4n-1 xmx4m+1
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