1、 7 3(7y2x9z2)(5y5x2z2) (6k22k)(5k28k7) (8a23a7b)(3a29a3b) 7x2(7x2 x7)(3x3) 5y2(3x2y)(4x28y2) ( x27xyx)(5x29xy3x) 6(xy9y21)(x2xy6y21) 6 5 1 1(xyy)(xyx8) 4 7(6y3x9z2)(3y2x4z2) (9k29k)(9k23k9) (7a24a b)(2a28a8b) 9x2(6x26x2)(3x6) 5y2(5x2y)(8x27y2) (2x2 xyx)(2x26xy8x) 5 1 9(xy9y25)(x2xy9y25) 8 8 7 5(xyy)
2、(xyx9) 6 6(6y3x7z2)( y5x9z2) ( k25k)(7k27k6) (2a2 a8b)(6a24a5b) 7x2(2x27x9)(2x3) 6y2(5x2y)(9x28y2) ( x24xyx)(7x2 xy8x) 4 1 6(xy9y24)(x2xy y22) 3 5 1 5(xyy)(xyx3) 5 4(8y3x z2)(6y6x4z2) (4k29k)(9k22k7) (8a25a2b)(6a27a5b) 8x2(8x24x1)(8x4) 4y2(4x2y)(8x28y2) 9( x2 xyx)( x28xy8x) 8 1 7(xy9y22)(x2xy4y28) 7
3、 6 5 8(xyy)(xyx9) (5y6x2z2)(5y2x3z2) (8k29k)(4k25k5) (9a28a2b)(3a27a4b) 2x2(3x26x5)(3x2) 3y2(7x2y)(4x25y2) (6x23xyx)( x2 xy3x) 1 4(xy2y22)(x2xy4y26) 2 6(xyy)(xyx8) 3 5(9y9x9z2)(4y9x z2) (3k27k)(3k25k1) (6a29a b)(5a2 a5b) 7x2(8x27x5)(7x8) 3y2(8x2y)(8x24y2) 3( x25xyx)(6x24xy5x) 6 9(xy9y29)(x2xy9y23) 5
4、 8 8 1(xyy)(xyx2) (4y2x9z2)(4y2x4z2) (3k2 k)(2k23k5) (8a25a9b)(5a2 a b) x2(3x2 x8)(6x3) 5y2(8x2y)(8x29y2) (8x28xyx)(3x29xy6x) 2 1(xy4y24)(x2xy8y22) 7 1(xyy)(xyx8) 8 3(9y6x7z2)(8y8x2z2) (4k2 k)(2k22k5) (3a2 a6b)(4a28a8b) 6x2(4x26x4)(8x6) 7y2(4x2y)(7x24y2) (8x24xyx)(3x26xy8x) (xy4y26)(x2xy8y23) 4 5 4
5、1(xyy)(xyx4) 3 3(9y2x9z2)(4y3x8z2) (9k22k)(3k25k3) (7a25a6b)(4a24a6b) x2(6x25x7)(3x6) 4y2(9x2y)( x22y2) (6x27xyx)(8x23xy2x) 6 4(xy6y25)(x2xy7y29) 5 5 1 2(xyy)(xyx1) 5 3(2y3x4z2)(9y9x9z2) (3k2 k)(2k28k1) ( a24a8b)(9a24a4b) 3x2(8x25x2)(8x6) 8y2(3x2y)(8x24y2) (2x2 xyx)(9x29xy6x) (xy y26)(x2xy5y21) (xyy)(xyx3) 5 6(3y6x3z2)(4y9x4z2) (3k25k)( k26k9) (6a26a2b)(5a22a9b) 8x2(5x22x8)(8x4) 3y2(2x2y)(7x24y2) (6x29xyx)(3x26xy x) 6 6(xy2y21)(x2xy8y29) 6 8(xyy)(xyx2) 5 7(8y6x3z2)( y x8z2) (2k22k)(3k25k1) ( a24a2b)( a22a9b) 4x2(5x28x9)(2x5) 7y2(8x2y)( x22y2)
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