1、 1 (8x28xyx)(9x26xy x) 8 4 3 (xy6y27)(x2xy y21) 5 4 1 1 (xyy)(xyx8) 7 7 (5y3x2z2)(6y7x5z2) (5k25k)(9k24k6) (2a29a5b)(3a26a b) 5x2(8x2 x7)(9x6) 4y2(4x2y)(7x23y2) 7 (2x28xyx)( x26xy x) 6 2 3 (xy9y25)(x2xy4y29) 3 4 2 1 (xyy)(xyx2) 3 5 (7y3x5z2)(8y5x3z2) (7k28k)(2k26k2) (3a24a5b)(4a23a9b) 5x2(7x25x3)( x
2、9) 5y2(4x2y)(4x23y2) (6x22xyx)(5x25xy4x) 2 1 (xy9y26)(x2xy7y26) 3 5 5 1 (xyy)(xyx6) 4 4 (7y4x6z2)(4y2x7z2) (4k27k)(7k29k3) (8a27a8b)(9a29a b) x2(6x24x6)(6x1) 3y2(5x2y)(8x24y2) 5 (5x22xyx)(6x28xy2x) 4 1 6 (xy8y23)(x2xy y22) 1 3 (xyy)(xyx1) (2y6x9z2)(4y4x7z2) (9k25k)(8k24k3) (4a27a8b)(6a29a2b) 4x2(5x29x2)(3x8) 4y2(4x2y)( x25y2) (2x24xyx)(8x29xy4x) (xy6y21)(x2xy4y22) 4 5 (xyy)(xyx1) 7 3 (9y8x7z2)(3y x7z2) (5k2 k)(8k22k8) (2a23a8b)(8a23a6b) 8x2(7x24x9)(5x3) 9y2(4x2y)(5x25y2) (2x26xyx)( x24xy4x)