1、(2x26x3)8(3x25x) 7(x27)9(x29) (x2y2xy4)9(x2y3xy7) 6 1(x210x11y)(x220x24y) 7 7 1 1(6k32k22)(9k37k26k) 4 3(2k26k)(5k25k8) (6a27a3b)(6a24a8b) 4x2(3x28x5)( x2) 8y2(9x2y)(8x25y2) 5(6x29xyx)(7x27xy6x) 4 6 4(xy4y27)(x2xy6y21) 5 3 3 1(xyy)(xyx6) 4 5(2y6x6z2)(6y8x4z2) (9m29m2)(4m7n4) (8x23x6)7(7x27x) 4(x24)4
2、(x21) (x2y4xy2)9(x2y5xy4) 2 4(x212x19y)(x219x13y) 3 3(9k35k23)(4k39k21k) 6 5(8k28k)(7k27k1) ( a24a7b)(4a24a6b) 4x2(6x24x7)(4x8) 6y2( x2y)(7x22y2) 1(2x28xyx)(3x22xy4x) 3 4 1(xy y29)(x2xy8y28) 5 6 5 1(xyy)(xyx7) ( y3x9z2)(3y7x5z2) (3m28m1)(3m n6) (9x29x2)2(2x23x) 7(x28)4(x25) (x2y9xy5)3(x2y2xy7) 5 5(x218x16y)(x217x10y) 6 6(3k39k26)(4k34k29k) 2 3(7k29k)(9k25k4) ( a25a4b)(3a2 a2b) 5x2( x2 x3)( x1) 6y2( x2y)(4x26y2) (9x2 xyx)(7x27xy8x) 6(xy6y27)(x2xy3y26) 8 6 2 1(xyy)(xyx2) 3 4(6y5x2z2)(4y5x6z2) (4m22m8)(3m3n3)