1、 1 1(x218x20y)(x211x22y) 5 5(5k36k27)(4k36k26k) 2 3(9m23m2)(9m6n2) (6x25x3)6( x26x) 6(x21)6(x25) (x2y9xy5)4(x2y9xy2) 1 4(x220x15y)(x213x18y) (3k34k27)(9k39k26k) 6 3(7m22m4)(6m6n5) ( x26x6)9(7x24x) 3(x29)3(x25) (x2y5xy8)8(x2y4xy6) 4 1(x212x13y)(x213x12y) 3 3(7k32k29)( k39k21k) 6 6(6m26m3)(8m9n2) (8x2
2、7x9)7(6x2 x) 2(x27)2(x25) (x2y2xy9)5(x2y6xy2) (x226x13y)(x218x30y) 8 8(3k32k27)(4k37k23k) 6 5(3m29m1)(3m n2) (7x25x6)5(5x25x) 4(x23)6(x25) (x2y6xy4)6(x2y3xy4) 5 7(x219x10y)(x214x18y) (2k39k24)(8k39k24k) (3m23m9)( m4n7) (9x23x9)2(5x2 x) 4(x23)2(x25) (x2y6xy5)6(x2y6xy8) 5 1(x218x20y)(x216x12y) 4 4(2k34k28)( k38k22k) 2 4(3m22m8)(2m n4) (4x25x9)7(2x22x) 7(x29)8(x27) (x2y5xy9)3(x2y3xy3) 1 2(x216x18y)(x211x19y) (9k38k26)(2k34k21k) 6 2(4m28m9)(6m4n4) (9x2 x5)7(4x26x) 5(x24)9(x27)