1、 y2(5x2y)(2x29y2) (3x29xyx)(3x28xy9x) 4(xy5y28)(x2xy6y29) 7 8 6 1(xyy)(xyx3) 7 6(2y x7z2)(3y8x9z2) (5k29k)(4k28k8) (8a25a4b)(8a28a8b) 7x2(4x22x2)(9x2) 9y2(2x2y)(8x25y2) (8x25xyx)( x24xy6x) 5 1 1(xy8y21)(x2xy4y27) 1 1(xyy)(xyx4) 4 3(3y6x8z2)(5y3x5z2) (6k24k)(2k28k7) (4a28a3b)(8a28a6b) 6x2(4x23x4)(6x6
2、) 4y2(4x2y)(4x28y2) ( x26xyx)(5x27xy3x) 8 6(xy y24)(x2xy y25) 7 7 1 3(xyy)(xyx2) 3 4( y7x9z2)(7y8x5z2) (7k23k)(3k24k5) ( a28a4b)(2a2 a b) x2(5x26x9)(8x4) 9y2(3x2y)( x23y2) (8x26xyx)(5x2 xy7x) 2 7(xy9y24)(x2xy9y29) 3 6 3 5(xyy)(xyx1) 4 4(2y8x5z2)(2y8x9z2) (5k25k)(2k28k5) (8a2 a b)(3a26a5b) 9x2(2x24x5
3、)(5x3) 9y2(4x2y)(4x28y2) 8(9x25xyx)(6x29xy3x) 7 5 1(xy7y22)(x2xy5y27) 4 4 1 8(xyy)(xyx4) 4 7(6y8x3z2)(3y8x2z2) (7k25k)(4k22k1) ( a26a6b)(7a22a4b) 9x2(9x28x3)(2x8) y2(4x2y)(3x24y2) (5x28xyx)(9x2 xy9x) 3 1(xy4y28)(x2xy4y29) 4 8(xyy)(xyx5) 6 8(2y4x5z2)(6y2x3z2) (5k25k)(3k28k3) ( a25a8b)(6a27a6b) 5x2(9x
4、2 x2)(4x8) 8y2(9x2y)(2x23y2) (8x23xyx)(5x24xy3x) (xy2y22)(x2xy5y23) 6 7 6 6(xyy)(xyx5) 7 7(6y9x4z2)(3y3x9z2) (3k28k)(3k29k6) ( a28a6b)(8a24a9b) 4x2(3x27x3)(3x8) 2y2(3x2y)(6x28y2) 2(4x29xyx)(2x28xy x) 3(xy2y21)(x2xy y23) 3 7 7 1(xyy)(xyx8) 8 3(4y2x3z2)( y6x5z2) (9k29k)(6k24k8) (9a23a7b)( a24a7b) x2(7
5、x28x7)(6x8) 3y2(7x2y)(8x24y2) (7x22xyx)(6x23xy2x) 1 4(xy3y21)(x2xy2y24) 6 5 1 4(xyy)(xyx7) 5 5(8y9x3z2)(7y9x3z2) (2k24k)(7k25k4) (6a28a2b)(2a28a3b) 8x2(3x24x4)(9x6) 4y2(9x2y)(2x25y2) (3x22xyx)(7x22xy4x) 4 7(xy5y24)(x2xy9y27) (xyy)(xyx6) (5y x7z2)(6y8x5z2) (8k28k)(8k28k8) (4a2 a6b)(7a28a7b) 4x2(6x24x4)(4x2) 4y2(8x2y)(3x25y2) (6x26xyx)(3x29xy6x) (xy2y21)(x2xy2y21) 9 5(xyy)(xyx9) 8 4(3y8x z2)(2y4x z2) (7k22k)(3k23k1) (5a24a9b)(9a23a6b) 5x2(6x24x8)(8x8) 6y2(3x2y)( x24y2) (4x23xyx)(6x27xy6x) 1 6(xy6y24)(x2xy7y29) 7 5 2 9(xyy)(xyx8) 3 8(5y8x5z2)(8y8x7z2)
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