1、4y2(3x2y)(3x28y2) 6 (6x26xyx)( x23xy2x) 7 6 7 (xy5y23)(x2xy4y21) 7 8 1 6 (xyy)(xyx8) 7 7 ( y5x3z2)(8y9x7z2) (6k2 k)(3k2 k3) ( a25a9b)(2a28a4b) 3x2(6x25x2)(8x1) 6y2(7x2y)(9x25y2) 1 (2x29xyx)( x23xy9x) 6 6 (xy9y22)(x2xy9y24) 7 7 6 4 (xyy)(xyx2) 7 5 (3y5x7z2)(4y8x3z2) (6k25k)(9k23k8) (6a23a3b)( a23a8b)
2、 8x2(2x24x3)(3x1) 5y2(3x2y)(7x23y2) ( x24xyx)(2x28xy2x) 5 1 1 (xy7y21)(x2xy3y22) 3 7 1 1 (xyy)(xyx9) 5 8 (6y x9z2)(8y3x6z2) (8k23k)(7k28k4) (8a22a4b)(2a25a9b) 8x2(6x27x1)(4x6) 6y2(6x2y)(7x28y2) (6x2 xyx)(9x2 xy2x) 5 3 (xy5y22)(x2xy8y26) 6 4 (xyy)(xyx9) (4y3x2z2)( y6x7z2) (5k26k)( k25k8) (6a23a b)(7a25a2b) 3x2(7x23x2)(7x9) y2(9x2y)(7x25y2) (6x24xyx)(4x27xy8x) 5 4 (xy6y21)(x2xy3y23) 6 3 6 1 (xyy)(xyx4) 5 7 (8y7x9z2)(4y7x7z2) (6k2 k)(2k22k1) (3a24a7b)(7a29a2b) 3x2(6x22x1)(2x1) 2y2(7x2y)(2x28y2)