1、(x4)(x1) (x2)(x5) (y2)(y2) (y3)(y3) x9x2 21a6b8(3a3b5) (y)3(y)2 (40x9y5)(5x6y4) 48x8y68x6y4 (18106)(9103) 8a4b4c28a2b3 (24a3b336a)4a (36a554a348a)6a (12x3y54xy2)6xy (2a)3 (2b)3 (6b)2 (xy4)2(3x3)2 (ab)4 (2103)2 (2ab4)3(102)3 (x6)9 (xn)6 (y3)9(104)9 (a6)3 (xm)7 (a5)4a6xx9 cc9 z6z4 (8)(8)3(8)6 x6nx5n-1
2、 xnx8n+1 ()9 y6y8 x5x 9 9 9 (1)(1)9(1)8 x9x4 a5a5 ()3 xnx7n+1 y8my8m+1 5 5 5 (x4)(7x2) 3a(3a8b) (3x7y)(3x) 2 1 (ab36ab)ab x(x3)4x(x4)3x(3x3) 3 2 (x2)(3x5) (3xy)(x7y) (3x2y)(x22xyy2) (2x6y)(xy) (a2)2 (3a3b)(ab) (4x22)(3x4) (x2x1)(x3) (x1)(x3) (x5)(x5) (y1)(y2) (y3)(y1) x8x5 12a7b9(6a4b7) (bc)8(bc)4 (
3、56x9y6)(7x4y2) 56x6y68x2y4 (49(7104) 2a3b3c32a2b2 (54a3b318a)6a (18a518a254a)9a (30x3y210xy2)5xy (3a)2 (3b)3 (4b)2 (xy3)3(2x2)2 (xy)2 (3102)2 (2ab4)3(107)5 (b4)8 (ym)3 (y6)7(104)3 (y9)3 (ym)7 (a6)7a6x5x4 zz8 zz6 (7)4(7)6 xnx9n-1 xmx8m-1 ()6()4()5 t5t2 z5z8 6 6 6 (3)4(3)9 c3c5 x3x6 ()9 x9nx7n-1 y7ny8
4、n+1 (8x4)(4x4) 2a(6a7b) (2x2y)(3x) 7 1 (ab34ab)ab x(x3)2x(x4)3x(x3) 6 7 (x1)(x1) (2xy)(2x2y) (x3y)(x2xyy2) (x4y)(xy) (a3)2 (4a3b)(3ab) (x26)(x7) (x22x1)(x2) (x3)(x1) (x2)(x4) (y3)(y2) (y1)(y2) x2 12a7b9(4a4b3) (a)9(a)8 (81x9y4)(9x3y3) 49x6y97x5y4 (64108)(84a5b7c42a3b4 (16a2b26a)2a (27a636a318a)9a (1
5、6x3y40x3y)8xy (3a)3 (6b)2 (2b)3 (xy2)4(5x2)3 (xy)2 (2104)3 (3ab2)2(108)4 (x6)8 (bm)6 (a2)4(109)4 (y9)4 (xm)5 (a7)3a2x9x4 yy8 aa8 (7)7(7)2(7)6 xmx3m-1 xmx3m+1 ()7()4 b2b7 y7y8 7 7 7 (9)(9)6(9)3 t7t9 xx8 ()3 xmx9m+1 x6nx8n+1 (4x3)(5x7) 8a(9a2b) (9x4y)(4x) (ab32ab)ab2 4x(x2)x(3x4)2x(4x3) (x5)(4x3) (x8y
6、)(2xy) (2x3y)(x22xyy2) (2xy)(3x5y) (a3)2 (4ab)(ab) (x22)(3x6) (x24x1)(3x3) (x4)(x1) (x1)(x1) (y1)(y2) (y4)(y3) b4b3 20a4b3(4a3b2) (y)6(y)4 (63x8y6)(7x2y2) 54x3y39x2y2 (15107)(56a4b9c23a3b2 (24a2b56a)8a (10a610a310a)2a (4x2y28xy)2xy (6a)3 (6b)2 (2b)2 (xy4)3(3x3)3 (ab)7 (4102)2 (5ab2)2(103)6 (b4)7 (an
7、)7 (x7)9(109)3 (a7)5 (yn)8 (a6)4a2xx6 zz2 t8t4 (4)(4)9(4)2 xmx9m-1 x7nx4n+1 ()3()2 t5t5 c3c7 (10)2(10)8(10)3 yy5 bb3 ()4 x9mx6m+1 x6mx5m-1 3 3 3 (3x2)(8x9) 5a(8a6b) (9x6y)(6x) 5 1 (ab22ab)ab3 x(x1)x(x2)x(x3) 6 5 (x2)(3x7) (x5y)(2xy) (2xy)(x23xyy2) (xy)(2x7y) (a3)2 (4ab)(4ab) (x27)(x3) (x2x3)(x1) (x1
8、)(x3) (x3)(x1) (y1)(y1) (y1)(y3) x7x4 14a3b9(7a2b3) (ab)5(ab)4 (56x6y6)(7x4y5) 24x6y76x4y3 (36105) 8a7b5c35a3b4 (25a3b25a)5a (9a427a315a)3a (24xy218xy)3xy (5a)3 (6b)3 (3b)2 (xy4)2(4x2)2 (ab)4 (4103)3 (3ab4)3(107)2 (a8)8 (xm)8 (y9)8(106)9 (x8)2 (bn)8 (a4)7a7xx6 xx7 zz9 (2)(2)6(2)5 x6mx3m-1 x6nx8n-1 (
9、)4 b3b7 y7y5 (1)2(1)6(1)5 b2b2 s4s8 ()2()9 x7nx4n+1 xmx9m-1 (x2)(9x2) 4a(7a6b) (3x4y)(7x) 4 1 (ab32ab)ab x(4x3)3x(x3)3x(x4) 5 4 (x3)(3x2) (x4y)(x3y) (2xy)(x2xyy2) (xy)(xy) (3a3)2 (a2b)(ab) (x25)(x3) (x2x2)(3x2) (x3)(x1) (x4)(x6) (y3)(y3) (y1)(y1) b2 10a7b8(5a3b5) (y)7(y)2 (40x6y9)(8x4y2) 35x4y35x2y2
10、 (21102) 3a3b3c46a2b2 (16a2b32a)(81a672a218a)9a (16x3y264xy3)(5a)3 (6b)3 (3b)2 (xy3)3(3x3)2 (xy)8 (3104)2 (2ab4)3(109)8 (b4)7 (bm)4 (b8)3(104)4 (x6)9 (yn)3 (a4)5a8x7x8 c2c3 c3c8 (5)(5)8(5)6 xmx2m+1 x7mx8m+1 ()2 b7b a9a 2 2 2 (5)9(5)3(5)5 xx4 s2s2 ()6 y5ny5n-1 xmx2m+1 (8x3)(6x6) 2a(7a4b) (4x4y)(9x) (ab35ab)ab x(x1)2x(3x4)2x(4x4)
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